Good job on the explanation. Very easy to follow. Thank you so much. My 97 gti runs like brand new ski. After I made the right adjustments, now ski runs top speed of 55 to 60. Before it only ran 35 to 40. Thanks again for your video.
Thanks for the video! Any tips on accessing the screws while on water with my Yamaha XL 800? Can't even see the carbs, let alone the screws, and would have to dig around a warm exhaust pipe... were they not thinking about it when designing the jet ski or am I missing something?
Yes! I couldn't adjust my carbs on the water due to this, I'm not the only one.... Really really disappointed in the Yamaha engineers that set it up this way
Great thread still going strong after all this time.. shout out to you for still answering our questions. Very few mechanics locally even bother to work on these old carbs anymore...... Or even know how.. I have a Yamaha XL700. If I idle around more than 10 to 15 seconds and then hit WOT it will bog out ..If I feather the throttle for a few seconds and get up on plane then it'll go like hell! I'll try tuning a few more times but I think it might be fuel delivery not so much a tuning issue. Carbs are 20 years old .there's probably an air leak somewhere in there?
Well if you have had that jetski for 20 years and it has ever ran great then you never start to tune on the carburetors without rebuilding them I'm sure when you open the carburetors up you will find worn out fuel pump diaphragms and rubber gaskets and now that you have tried to tune the carburetor you will have to dial the carburetor in at the water and there is no setting for a 700 on the chart so you have to get clothes and start from scratch at the lake on the dial-in if the boat ran good for years and started acting up again you should have not started turning on the carbs you should have rebuilt them then you would not have to return the carb in the water because those settings do not change
Love the video and love that you’re answering questions still🙏, I have this 97 gti as well that I bought a carb for. The carb I bought is one of those eBay one just like the one your showing with the accelerator pump. after slapping on the ski doesn’t wanna turn on, only way it’ll turn on is will heavy throttle upon cranking, and when you let go it’ll immediately die. Guess I have to tune the carb it looks like. The 97 gti didn’t come with accel pumps, seen on some forums it’s fine to run it as long as you use the 98 gti carb settings?
@@dsavage8751 when you hold the throttle open you're adding more are so if the accelerator pump is working and it's not set up for an accelerator pump it's squirting too much fuel and if it's Rich it will not run
What’s the high and low speed setting on a 1993 wave runner 3 with the 650cc motor? If you hold it anywhere past half throttle it falls on its face and if you keep holding it, it dies.
Go to sbt.com and on the first page scroll all the way down then you will see the word articles click on articles then scroll down to factory carburetor settings and all your information will be there
Good Video Shannon. I have a 1994 Seadoo SPi, 587cc Single Carb. High set to "0" Low set to "1" per manual. Idles great but I am bogging out with any throttle input. Should i back out my low speed screw 1/2 a turn? I think i need to back it out as for it to then start again, i need to pull the choke even if its warm. (I.E. its not getting fuel at low rpms and thus, low screw should be backed out????)
It should idle and rev up on the trailer with the stock book settings if you're bogging in the water follow the video Turn it in or out a quarter of a turn whatever you choose then try it if that doesn't work go back to the stock settings and go the other way but make sure that your carburetor is rebuilt your pop-off pressure is correct and you're not using cheap eBay or Amazon carburetor kits get the good Mikuni or Ken whatever your carburetor brand is then also make sure that you have changed your fuel on and off valve because those will cause major issues also make sure you have all updated fuel lines those will cause major issues and you cannot go to a Sea-Doo dealer and buy a new old stock on the fuel on and off valve you have to go to like SBT or WSM because the New Old Stock Sea-Doo on and off fuel valves cannot handle the new fuel and the rubber inside swells up and cuts the fuel to the carburetors off also do a fuel pressure check to the gas tank and make sure you have no air leaks all of these things must be done and while you're building your carburetors check the pop-off pressure and make sure your needle and seats are holding and you have no air leaks anywhere on the carburetors look in the book it will tell you what air pressure they should show get a small finger or thumb pump and pump them up and make sure they are holding on the bench
@@nathansoley23 you want to check and do everything that was listed if you don't the jet-ski will run lean and burn up one of the cylinders and everybody says oh my ski runs good though they will all run good until they don't and it will cost you a motor
Old thread but i'll give it a try! it took me a couple of times passing your video to read settings for my GTX my question is, low is set it at 11/2 turns which i'll fix over the weekend however i've noticed the high shows 0 does that mean My needle has to be all the way in without backing it out at all? it didn't make sense or why even put a needle valve there that is the reason i'm asking thanks for your help!
hello @shannonwilliams please could you help me and tell me the carb settings for a wet jet duo zx300. it has a 701cc 2 stroke in it with a single mikuni carb i cant find anywhere the carb settings
Good information. I've got my pop off and preset adjustments done on the high and low but I'm struggling to get it to run smoothly. I've read that the general idle rpm should be any where from 1100 to 1500 but the motor is vibrating aggressively when running. Can this be fixed with out using a "flow meter"?
Should I be able to see fuel dripping into the carb from above? The one carb has fuel and the other carb is dry and the ski is running and as soon as a load is put on it (my body weight) it limps along
Go to sbt.com scroll all the way down to the bottom click on technical then scroll down and click on articles then on that page you can scroll down and look for stock carburetor settings click on that and it will show you everything you need to know
I need some serious help!! Not sure if you can but I have a 96 waveraider 701 at 3/4 throttle it dies otherwise at full throttle it’s perfect and anything else is perfect I have 2 carbs which should I adjust and should I adjust the high or low jet?
I'm sure you have since figured this out. Just in case not, you should adjust the high speed screw. As for which carb to adjust, usually both. Set both high speed screws to factory specs. put the machine on the water and run it. at 3/4 throttle if it dies, turn the screw 1/8 turn OUT on BOTH carbs to allow more fuel to the mix. Start the machine and idle around for a minute, and try 3/4 throttle again. If it dies, turn the high speed screw another 1/8 turn out and repeat the process. If you need to turn the high speed screws more then 1/2 turn past factory specs, your carbs need to be cleaned and or you have an air leak in your carb gaskets. To be sure, install new spark plugs. run the machine for 2-3 minutes in the water at 3/4 throttle. shut the machine off, and pull the plugs. if the plug has white carbon burns on it, your running too lean (high speed screws turned in too far). You want to see a plug with carbon burns about the same color as a brown paper bag when you are tuned in perfectly. Look up spark plug color chart for more info on that.
Shannon hoping your still, around. I have a 95 polaris SLT750 with 3 carbs. I have cleaned and rebuilt the carbs. I have reset the low and high speed adjustment to factory setting, It starts and idles fine in and out of the water. out of the water I good throttle response. In the water idles good but bogs down and dies when taking off. I can pull the chock out about half way and it will get up and go but if let the chock off it dies unless I let the throttle go back to idle then it runs at idle speed. Two questions I have and any suggestions would be great. Factory setting is low speed on all 3 carbs is 1/2 turn and high speed 1M 1/2C 3/4P After running I make a 1/4 adjustment to M-card should make the same adjustment to the other two carbs. Thats what I have tried but it still bogs down. HELP, HELP
You want to set your carburetors at whatever the book says they are usually all the same unless it is specified in the book that the PTO carburetor may be different than the mag carburetor you also want to do a fuel pressure check all you do is pull the main gas line that goes into your carburetor pressure it up true about 8 lb and then listen for any leaks such as a gas cap seal a tank valve seal or anything like that this will cause the same problem
I have a 93 Kawi 750 SSXI, dual carb. It bogs/dies out of the hole unless I ease into the throttle, then it runs good. I can go WOT once I get going a little. Would that be a low speed or high speed adjustment? Or something else? Seems to be some conflicting info out there.
My low end seems to be ok, but if I go WOT then let off for a second to turn or whatever, then hit the throttle again it falls off and will stall if I don’t start to feather it a lot. Do you figure this is a symptom of the high end screws being incorrect? It is on a 92 SL650 that I just picked up. Thanks Shannon, good video.
This sounds more like you have a air leak in your fuel system or your fuel pump diaphragm is weak go ahead and check your high-end screw and see if it's close to the book if it is then it's going to be something else
@@NickLiftsNude there's no such thing as a used fuel pump the fuel pump is built inside the carburetors so if you rebuild the carburetors it comes with the fuel pump rebuild diaphragms all there is to a fuel pump on a jet ski is too little circle diaphragms and a gasket and it's actually not even a fuel pump it's a pressure diaphragm pump
@@shannonwilliams601 thanks for the clarification, I was speaking of the external fuel pressure diaphragm that bolts onto the side of the carb. I assumed this is what sucked gas out of the tank thru the fuel filter and kept everything pressurized
Shannon Williams i cant find the chart in sbt.com i have a 1998 seadoo GTI single carb it bogs at low speed but if you easy into the full throttle it go perfectly fine i believe i need to adjust the low speed idle would like to find the chart
Shannon Williams yes i have i change all that so it runs If I’ll easy into the throttle and then once I’m half Way in the throttle i can gun it all the way and it will take off perfectly fine and run go it’s just if i give it full throttle it bog so i think my low speed is off so trying to see what it’s suppose to be at
Should give detailed information on how to acquire that reference you are using in the beginning of the video, like a link, specific name of document, etc...
Unfortunately there is not a setting for the 700 so what you have to do is start at 1 and 1/4 turn out on the low side then put it in the water and go through the steps I described in the video and you will find the correct setting
Not always sometimes the mag cylinder is different than the PTO cylinder carburetor if you send me your year make and model I will tell you what the settings are
Shannon Williams yes i found the settings for mine but i was more asking about when you need to make an adjustment, do you make the same adjustment to all three?
@@thestanggang7767 it will tell in the settings if it only gives you high and low settings then yes all three will be the same if it tells you PTO setting and Magneto setting then all three will not be the same it depends on what your settings says
Hey Shannon, on the Polaris info it starts at 1994, Mine is a 1992 650sl. Probably the same settings as the 1994 650? Low at 1 & 1/4 and high at 1. Or is there somewhere that goes back to earlier models? thanks
You should only have two screws a high and low and then on one side you will have an extra screw which is the idle screw that goes to the throttle cable and sometimes they will have a t and sometimes they may not it should be marked on the carburetor H&L
hello , I am French and I will need the technical sheet for the mikuni 38 carburetor adjustment (high and low screw adjustment and nozzle opening) as well as a photo of the fuel return and pump arrival. How to get them? A big thank-you Eric
I have a 99 Waverunner 1200 XLT. I have blown the #3 cylinder out 3 times now. It went solid for a summer and ran great last year but on the way to the docs I blew it again. I rebuild the engine and did a vacuum check so I know it’s solid. I think I keep adjusting the carbs too lean. I see I have solid black burn pattern on my other 2 pistons, so it was lean. How do I make sure I don’t blow it up again? Is the spark plug color method the most reliable, the piston burn pattern, or what?
There is several things on that jet ski. Are known to fry the motor one is a pressure leak on the fuel system 2 is adjusting the carburetor is wrong what you have watched the video on that just make sure you go by the book and only very 1/4 of a Turn 3 in the gas tank on the fuel straws on the bottom there is a flat takes that flap off and throw it away what happens is it gets too much suction the flat closes and it starts to cut fuel off and cause a lean condition you also want to make sure you have lever links on the Rave valves in your motor because if not a stock Yamaha will drop the rave valve into the engine you also want to make sure that you have deleted your catalytic converter with a d plate and computer chip don't forget any of these things because it will cause engine failure
@@shannonwilliams601 thanks so much I did all that except for the pressure test on the fuel system. Whenever I open the fuel cap it makes a whoosh sound, would it do that if the system was leaking? Maybe I was just running it too lean if fuel system is NTF. I was running 40/1 premix but the SBT tech said run it at 32/1. I will turn the main jet out 1/4 turn and look at the plugs to see if it fattens up enough.
Also just checked my high speed jet adjustment as it was when it failed. All we’re out 1.5 turns. I did the pressure check on the tank and it is tight. I have no idea why it ran lean all the sudden and failed #3. I did all the Oside Bill mods from Greenhulk and have after market flame arresters. I really don’t know. I’m not 100% I removed the flapper on the fuel pickup so I will check that. Anything else?
My hunch is the old oil lines, I may remove all of them and braze some solder in the ports or tap them an put a machine screw and red loctite. I saw in another video you said to use gasket sealer on all metal gaskets. I have theeebond 1184 gray. Should I put that on the cylinder gasket, exhaust gasket, and head gasket? All are metal gaskets.
@@egraffius yes you want to use form a gasket on both sides of every gasket also you never want to put any kind of solder or anything like that if you're going to block off the oil pump you simply cut the lines and put a screw in the end but there is no need to do that you want to buy the fluorescent green or yellow fuel line and use it as the oil line we buy it by the roll it works great those pumps are very good and very reliable
That means that the carburetor on the PTO side is one setting and the carburetor on the mag side is another setting and what they mean by PTO is the drive shaft side and what they mean by mag is the Magneto side which is the charging system which is on the front of the motor so the front carburetor is the Magneto side and the rear carburetor is the PTO side
I have the same carburetor that you have in the video I put them on the boat and then start for a little while and then I try to accelerate a quick your video has been very helpful can you please try to help me in this project
I just rebuilt my 2001 seadoo gtx 951 with bigger pistons. It starts up and sounds good only this is when I crank it, it idles very high at 7000 rpm not sure what the problems is. I also rebuilt the carbs and changed the gaskets on the rave valves. Need some help.
Kyle Brunson your problem is you have a air leak which will lean it out and cause it to high Rev or you are not getting enough fuel that will cause it to because your air fuel mixture will be off and it will lean and rev
Shannon Williams the high speed screws only can turn just a little bit not even a full 180 but I have those in the middle and the low speed at 1.5 turns. The low have the t bolt where you can turn a lot more
when you say lightly seat, do you mean screw all of the way in until you feel slight resistance? Just want to make sure before I possibly ruin the brand new carburetor . :)
I have a 1996 seadoo spx it seems to be leaking fuel it's now a steady drip but I reach under the carb and can see and smell fresh fuel I changed the fuel lines it's not coming from the lines where eles could it be coming from?
If you're having a cold start problem it's usually a fuel issue have you done a fuel pressure check to make sure the system is holding between 5 and 7 lb
Hey Shannon Williams great video but at end you just say go one way or the other if I pin it and it falls on face for a sec then takes off what u think getting to much fuel at idle taking a sec to burn off its brand new carb like one u had made for gs but put on gsi since they don’t make carb for gsi anymore
If it takes off fine and then it falls on its face then it could be your high-end but if they high-end takes off fine and the low and takes off fine and it falls on its face it can be a fuel delivery problem such as the small clear circular diaphragms in your fuel pump make sure there is no hole and make sure that your selector valve on off Reserve valve is not clogged
Subscribed and liked Could you please tell me how to adjust the pilot on js 440 1988 Everything is messed up i just want the oem settings And everybody has a different opinion Can you help me ? I need High Low Pilot
@@jimmy2fois263 there is no pilot jet it has a low speed jet and a high-speed jet they are usually marked L & H if not usually the low speed jet adjustment is on the bottom and the high-speed is on the top
@@shannonwilliams601 there is 3 t adjusters One on the right alone wich i believe is low speed On the left there is bottom wich i believe is pilot And the top one wich i believe is high speed
Shannon Williams Thanks for the reply, i have a mikuni sb40i and the throttle return spring is loose, is not tight like is suppose to, is not doing his job. I have search everywhere but cant find exactly how to put it in the right position.
They do not have a setting for a 700 so start it one turn out on the low-speed put it in the water and start going 1/4 in and out till you find it and then start with 3/4 turn out on the high-speed until you find it
Shannon Williams iT needs to be adjusted the previous owner fucked it up they didn’t know what they were doing to my knowledge the low speed adjuster is open almost 2 turns that’s way to much and the high speed is at 3/4
Thanks for couple bland statements. Hey when you Tune a carburetor you wanna turn the low speed adjustment in and you wanna turn the low-speed out and then do you wanna go ahead and turn it in and turn it out thanks for the help
Hello! Thanks for your help with your video. For a better result, I wanna try follow the instruction in sbt forum, but the website can't log me in for download the manual. Can you help me? Maybe you can send me the PDF instrucion for Kawasaki!? thanks a lot!
Just go to sbt.com and soon as the first page opens scroll all the way down to the bottom then click technical after that it will change screens and then you click articles and then scroll down in the carburetor settings are right there
I have a 1996 SPX brand new carbs, set up by a sea doo dealer. It has a miss at idle, high speed also and it falls on takeoff for a second or two, is that a Low and High adjustment? Thanks, Marc
I have 1998 arctic cat tigershark 770, and there is mikuni carbs, looks pretty much same as this on video but the "high-speed adjust screw" is different? Could it be non-adjust? Because it looks like just a normal jet?? (nr. 58 on it) but some SBT manual what i found on internet, says "high-speed adjust: 5/8" thanks.
Thank you for explaining, I was confused before , thank you again
Good job on the explanation. Very easy to follow. Thank you so much. My 97 gti runs like brand new ski. After I made the right adjustments, now ski runs top speed of 55 to 60. Before it only ran 35 to 40. Thanks again for your video.
Anytime. Glad I could help
Short and to the point.
SO TIRED OF HEARING PEOPLE'S LIFE STORY WHEN I'M LOOKING FOR INFO. LOL
Thank you so much. I’ve been searching for over a year too find the correct settings for my js550
Thanks for the video! Any tips on accessing the screws while on water with my Yamaha XL 800? Can't even see the carbs, let alone the screws, and would have to dig around a warm exhaust pipe... were they not thinking about it when designing the jet ski or am I missing something?
Those are a pain in the butt because of the exhaust pipe but they are accessible just try to get you a bendable screwdriver
Yes! I couldn't adjust my carbs on the water due to this, I'm not the only one.... Really really disappointed in the Yamaha engineers that set it up this way
Great thread still going strong after all this time.. shout out to you for still answering our questions. Very few mechanics locally even bother to work on these old carbs anymore...... Or even know how..
I have a Yamaha XL700. If I idle around more than 10 to 15 seconds and then hit WOT it will bog out ..If I feather the throttle for a few seconds and get up on plane then it'll go like hell!
I'll try tuning a few more times but I think it might be fuel delivery not so much a tuning issue.
Carbs are 20 years old .there's probably an air leak somewhere in there?
Well if you have had that jetski for 20 years and it has ever ran great then you never start to tune on the carburetors without rebuilding them I'm sure when you open the carburetors up you will find worn out fuel pump diaphragms and rubber gaskets and now that you have tried to tune the carburetor you will have to dial the carburetor in at the water and there is no setting for a 700 on the chart so you have to get clothes and start from scratch at the lake on the dial-in if the boat ran good for years and started acting up again you should have not started turning on the carbs you should have rebuilt them then you would not have to return the carb in the water because those settings do not change
Hey,
What's the trick on adjusting the carbs when its on sea doo?
Very hard to get too!!!
RSVP!!!
Great this is the video I have been looking for since I got may jetski years ago !! thanks
No problem glad I could help
Love the video and love that you’re answering questions still🙏, I have this 97 gti as well that I bought a carb for. The carb I bought is one of those eBay one just like the one your showing with the accelerator pump. after slapping on the ski doesn’t wanna turn on, only way it’ll turn on is will heavy throttle upon cranking, and when you let go it’ll immediately die. Guess I have to tune the carb it looks like. The 97 gti didn’t come with accel pumps, seen on some forums it’s fine to run it as long as you use the 98 gti carb settings?
@@dsavage8751 when you hold the throttle open you're adding more are so if the accelerator pump is working and it's not set up for an accelerator pump it's squirting too much fuel and if it's Rich it will not run
@@shannonwilliams601 how can I tune it to stop squirting extra fuel
It's a fuel screw correct, so clockwise is lean and counter clockwise is rich? Unlike an air fuel screw which is the opposite?
That's correct
0 on high side means all the way down, closed?
What’s the high and low speed setting on a 1993 wave runner 3 with the 650cc motor? If you hold it anywhere past half throttle it falls on its face and if you keep holding it, it dies.
Go to sbt.com and on the first page scroll all the way down then you will see the word articles click on articles then scroll down to factory carburetor settings and all your information will be there
Good Video Shannon. I have a 1994 Seadoo SPi, 587cc Single Carb. High set to "0" Low set to "1" per manual. Idles great but I am bogging out with any throttle input. Should i back out my low speed screw 1/2 a turn? I think i need to back it out as for it to then start again, i need to pull the choke even if its warm. (I.E. its not getting fuel at low rpms and thus, low screw should be backed out????)
It should idle and rev up on the trailer with the stock book settings if you're bogging in the water follow the video Turn it in or out a quarter of a turn whatever you choose then try it if that doesn't work go back to the stock settings and go the other way but make sure that your carburetor is rebuilt your pop-off pressure is correct and you're not using cheap eBay or Amazon carburetor kits get the good Mikuni or Ken whatever your carburetor brand is then also make sure that you have changed your fuel on and off valve because those will cause major issues also make sure you have all updated fuel lines those will cause major issues and you cannot go to a Sea-Doo dealer and buy a new old stock on the fuel on and off valve you have to go to like SBT or WSM because the New Old Stock Sea-Doo on and off fuel valves cannot handle the new fuel and the rubber inside swells up and cuts the fuel to the carburetors off also do a fuel pressure check to the gas tank and make sure you have no air leaks all of these things must be done and while you're building your carburetors check the pop-off pressure and make sure your needle and seats are holding and you have no air leaks anywhere on the carburetors look in the book it will tell you what air pressure they should show get a small finger or thumb pump and pump them up and make sure they are holding on the bench
@@shannonwilliams601 thanks Shannon. I figured it out today. My pop off was too low and I was flooding the carb with next to no throttle input.
@@nathansoley23 you want to check and do everything that was listed if you don't the jet-ski will run lean and burn up one of the cylinders and everybody says oh my ski runs good though they will all run good until they don't and it will cost you a motor
Old thread but i'll give it a try! it took me a couple of times passing your video to read settings for my GTX my question is, low is set it at 11/2 turns which i'll fix over the weekend however i've noticed the high shows 0 does that mean My needle has to be all the way in without backing it out at all? it didn't make sense or why even put a needle valve there that is the reason i'm asking
thanks for your help!
Yes if it's zero turns that means it's all the way in and that's pretty common on the high setting
Where on sbt is the settings chart cant seem to find it all i find is how to swap engines
do you have the settings for a yamaha waverunner vxr 650 on them sheets please
hello @shannonwilliams please could you help me and tell me the carb settings for a wet jet duo zx300. it has a 701cc 2 stroke in it with a single mikuni carb i cant find anywhere the carb settings
What do you mean by falls on his face?
Good information. I've got my pop off and preset adjustments done on the high and low but I'm struggling to get it to run smoothly. I've read that the general idle rpm should be any where from 1100 to 1500 but the motor is vibrating aggressively when running. Can this be fixed with out using a "flow meter"?
Should idle 3000 on trailer out of the water
Should I be able to see fuel dripping into the carb from above? The one carb has fuel and the other carb is dry and the ski is running and as soon as a load is put on it (my body weight) it limps along
When the ski is idling on the trailer no you should not be able to see fuel dripping
hello very good video, where I can get that manual for Yamaha it would be of great help 😀😀
Go to sbt.com scroll all the way down to the bottom click on technical then scroll down and click on articles then on that page you can scroll down and look for stock carburetor settings click on that and it will show you everything you need to know
Thank you so much. I wasn't sure how to set the carb and you made it so easy. Really appreciate it. Where can i get a copy of the carb settings chart?
Sbt.com
I need some serious help!! Not sure if you can but I have a 96 waveraider 701 at 3/4 throttle it dies otherwise at full throttle it’s perfect and anything else is perfect I have 2 carbs which should I adjust and should I adjust the high or low jet?
I'm sure you have since figured this out. Just in case not, you should adjust the high speed screw. As for which carb to adjust, usually both. Set both high speed screws to factory specs. put the machine on the water and run it. at 3/4 throttle if it dies, turn the screw 1/8 turn OUT on BOTH carbs to allow more fuel to the mix. Start the machine and idle around for a minute, and try 3/4 throttle again. If it dies, turn the high speed screw another 1/8 turn out and repeat the process. If you need to turn the high speed screws more then 1/2 turn past factory specs, your carbs need to be cleaned and or you have an air leak in your carb gaskets. To be sure, install new spark plugs. run the machine for 2-3 minutes in the water at 3/4 throttle. shut the machine off, and pull the plugs. if the plug has white carbon burns on it, your running too lean (high speed screws turned in too far). You want to see a plug with carbon burns about the same color as a brown paper bag when you are tuned in perfectly. Look up spark plug color chart for more info on that.
My idle is really low in the water and the ski dies. Will adjusting it fix the idle problem?
Most 2-stroke jet skis idle off of the low speed jet
Hello! I have sea doo GTX Limited year 1998. How much should I turn my low and high carburetor tuning?
can you send me the link for them print outs? I cant find them charts anywhere please
I cant find them either, and I'm pretty internet savy
Sbt.com
I also cant seem to find them. Is it in the forum section somewhere?
Captain Baker did you find the chart I’m looking on the sbt.com website and see nothing
Great video, will help clear a bog on my 96 gtx..which happens between 2k and 3k
Shannon hoping your still, around. I have a 95 polaris SLT750 with 3 carbs. I have cleaned and rebuilt the carbs. I have reset the low and high speed adjustment to factory setting, It starts and idles fine in and out of the water. out of the water I good throttle response. In the water idles good but bogs down and dies when taking off. I can pull the chock out about half way and it will get up and go but if let the chock off it dies unless I let the throttle go back to idle then it runs at idle speed. Two questions I have and any suggestions would be great.
Factory setting is low speed on all 3 carbs is 1/2 turn and high speed 1M 1/2C 3/4P
After running I make a 1/4 adjustment to M-card should make the same adjustment to the other two carbs. Thats what I have tried but it still bogs down. HELP, HELP
You want to set your carburetors at whatever the book says they are usually all the same unless it is specified in the book that the PTO carburetor may be different than the mag carburetor you also want to do a fuel pressure check all you do is pull the main gas line that goes into your carburetor pressure it up true about 8 lb and then listen for any leaks such as a gas cap seal a tank valve seal or anything like that this will cause the same problem
Hello . Can you give me the tuning parameters for the 1998 Yamaha GP 800? Thank you
@@ocgionggiasi low speed 1 and 7/8 high speed 1/2 these can vary a quarter of a turn either way
@@ocgionggiasi there u go
I would like to know the adjustment of the good low and high screws. Thank you
What ski do u have
What ski do u have
Seadoo gsx ltd 99 951
Low 1 1/2 high 0 and remember these settings can vary a quarter of a turn so you must put it in the water and try it
many, many thanks, blessings
are you located in Michigan? Looking to get my Carbuator cleaned and tuned.
I have a 93 Kawi 750 SSXI, dual carb. It bogs/dies out of the hole unless I ease into the throttle, then it runs good. I can go WOT once I get going a little. Would that be a low speed or high speed adjustment? Or something else? Seems to be some conflicting info out there.
If you're sure that's the problem that would be your low speed taking off is always your low speed top end is always your high speed
When you are turning in the mixture screws, are you making the mix more rich/adding more fuel?
Rockuhill in is less fuel out is more
Shannon Williams got it, thanks man!! Great vid by the way!
My low end seems to be ok, but if I go WOT then let off for a second to turn or whatever, then hit the throttle again it falls off and will stall if I don’t start to feather it a lot. Do you figure this is a symptom of the high end screws being incorrect? It is on a 92 SL650 that I just picked up. Thanks Shannon, good video.
This sounds more like you have a air leak in your fuel system or your fuel pump diaphragm is weak go ahead and check your high-end screw and see if it's close to the book if it is then it's going to be something else
I am having the same problem, i have to constantly feather it when decellerating
@@shannonwilliams601 if it is the problem your speaking of, Do you recommend trying to rebuild the fuel pump or just buying a working used one?
@@NickLiftsNude there's no such thing as a used fuel pump the fuel pump is built inside the carburetors so if you rebuild the carburetors it comes with the fuel pump rebuild diaphragms all there is to a fuel pump on a jet ski is too little circle diaphragms and a gasket and it's actually not even a fuel pump it's a pressure diaphragm pump
@@shannonwilliams601 thanks for the clarification, I was speaking of the external fuel pressure diaphragm that bolts onto the side of the carb. I assumed this is what sucked gas out of the tank thru the fuel filter and kept everything pressurized
Went to the site but cant find that info can someone help please
What year and ski do you have
Shannon Williams i cant find the chart in sbt.com i have a 1998 seadoo GTI single carb it bogs at low speed but if you easy into the full throttle it go perfectly fine i believe i need to adjust the low speed idle would like to find the chart
@@josecollazos6 have you already changed the old fuel lines the old on and off fuel valve and checked your pop off pressure
Shannon Williams yes i have i change all that so it runs If I’ll easy into the throttle and then once I’m half Way in the throttle i can gun it all the way and it will take off perfectly fine and run go it’s just if i give it full throttle it bog so i think my low speed is off so trying to see what it’s suppose to be at
Does SBT still have this information available on their site?
Hello, could yo tell me the adjust on a 96 yamaha wave venture 1100 2t i’ve Been looking info for a long time
1 1/8 low 7/8 high. +or- 1/4
Should give detailed information on how to acquire that reference you are using in the beginning of the video, like a link, specific name of document, etc...
33o6sew SBT.COM like he said. Listen.
SBT.com is a very complicated site, and no where do i see these settings listed
Agreed their site is difficult, a direct link would have been nice. Thank you for the informative video though.
Can I see the Yamaha carb setting for a 94 waverunner lll
I have to know what motor is in your Waverunner 3 to give you the settings
@@shannonwilliams601 700cc
Unfortunately there is not a setting for the 700 so what you have to do is start at 1 and 1/4 turn out on the low side then put it in the water and go through the steps I described in the video and you will find the correct setting
@@shannonwilliams601 thank you! Will do I'm a kid that's trying to find these things out can I contact you for things like this?
@@joziahreyes666 no problem
So, like on my ski that has 3 of these carbs, you would adjust them all the same at the same time?
Not always sometimes the mag cylinder is different than the PTO cylinder carburetor if you send me your year make and model I will tell you what the settings are
Shannon Williams yes i found the settings for mine but i was more asking about when you need to make an adjustment, do you make the same adjustment to all three?
@@thestanggang7767 it will tell in the settings if it only gives you high and low settings then yes all three will be the same if it tells you PTO setting and Magneto setting then all three will not be the same it depends on what your settings says
Hey Shannon, on the Polaris info it starts at 1994, Mine is a 1992 650sl. Probably the same settings as the 1994 650? Low at 1 & 1/4 and high at 1. Or is there somewhere that goes back to earlier models? thanks
A 94 650 and a 92 650 are going to be the same settings because they are both 650 the only difference was a few things on the hull
Does the low speed screw on a Yamaha also have the T? I think my 96 wave venture has 3 screws on both carbs
You should only have two screws a high and low and then on one side you will have an extra screw which is the idle screw that goes to the throttle cable and sometimes they will have a t and sometimes they may not it should be marked on the carburetor H&L
Shannon Williams thank you. I just found it. The T is the idle and the low speed is on the right and the high speed is on the left side of carb
hello ,
I am French and I will need the technical sheet for the mikuni 38 carburetor adjustment (high and low screw adjustment and nozzle opening) as well as a photo of the fuel return and pump arrival.
How to get them?
A big thank-you
Eric
What is the year make and model of the jet ski you are working on
@@shannonwilliams601 hello ,
kawa 550 sx 1992 double carb mikuni 38, solas helise, modified muffler and water box
Sbt.com
Can you tell me the high and low settings on a 1989 Yamaha waverunner 500 with a 2 stroke engine
Low is 1 and 1/4 high is 3/4
Low is 1 and 1/4 high is 3/4
@@shannonwilliams601 settings yamaha 760 xl? Please
thank you Chris.
I have a 99 Waverunner 1200 XLT. I have blown the #3 cylinder out 3 times now. It went solid for a summer and ran great last year but on the way to the docs I blew it again. I rebuild the engine and did a vacuum check so I know it’s solid. I think I keep adjusting the carbs too lean. I see I have solid black burn pattern on my other 2 pistons, so it was lean. How do I make sure I don’t blow it up again? Is the spark plug color method the most reliable, the piston burn pattern, or what?
There is several things on that jet ski. Are known to fry the motor one is a pressure leak on the fuel system 2 is adjusting the carburetor is wrong what you have watched the video on that just make sure you go by the book and only very 1/4 of a Turn 3 in the gas tank on the fuel straws on the bottom there is a flat takes that flap off and throw it away what happens is it gets too much suction the flat closes and it starts to cut fuel off and cause a lean condition you also want to make sure you have lever links on the Rave valves in your motor because if not a stock Yamaha will drop the rave valve into the engine you also want to make sure that you have deleted your catalytic converter with a d plate and computer chip don't forget any of these things because it will cause engine failure
@@shannonwilliams601 thanks so much I did all that except for the pressure test on the fuel system. Whenever I open the fuel cap it makes a whoosh sound, would it do that if the system was leaking? Maybe I was just running it too lean if fuel system is NTF. I was running 40/1 premix but the SBT tech said run it at 32/1. I will turn the main jet out 1/4 turn and look at the plugs to see if it fattens up enough.
Also just checked my high speed jet adjustment as it was when it failed. All we’re out 1.5 turns. I did the pressure check on the tank and it is tight. I have no idea why it ran lean all the sudden and failed #3. I did all the Oside Bill mods from Greenhulk and have after market flame arresters. I really don’t know. I’m not 100% I removed the flapper on the fuel pickup so I will check that. Anything else?
My hunch is the old oil lines, I may remove all of them and braze some solder in the ports or tap them an put a machine screw and red loctite. I saw in another video you said to use gasket sealer on all metal gaskets. I have theeebond 1184 gray. Should I put that on the cylinder gasket, exhaust gasket, and head gasket? All are metal gaskets.
@@egraffius yes you want to use form a gasket on both sides of every gasket also you never want to put any kind of solder or anything like that if you're going to block off the oil pump you simply cut the lines and put a screw in the end but there is no need to do that you want to buy the fluorescent green or yellow fuel line and use it as the oil line we buy it by the roll it works great those pumps are very good and very reliable
What jet ski are you working on
On a 98 Seadoo GTI 717 You have To Adjust Both Carbs Correct?
Anytime it has twin carbs you have to adjust oath and sometimes the setting on one carb is different than the other you just have to go by the book
When you say "one turn", does that mean 360°? Like a full turn, or 180° half turn?
One turn means one complete time
One turn equals one revolution which is 360° a half turn is 180 degrees
I have a 97 seadoo gtx. It says to adjust high speed to (MAG - 0 PTO - 1/2). What exactly does that mean?
That means that the carburetor on the PTO side is one setting and the carburetor on the mag side is another setting and what they mean by PTO is the drive shaft side and what they mean by mag is the Magneto side which is the charging system which is on the front of the motor so the front carburetor is the Magneto side and the rear carburetor is the PTO side
L
I have the same carburetor that you have in the video I put them on the boat and then start for a little while and then I try to accelerate a quick your video has been very helpful can you please try to help me in this project
manuel gomez no problem what is the question
I just rebuilt my 2001 seadoo gtx 951 with bigger pistons. It starts up and sounds good only this is when I crank it, it idles very high at 7000 rpm not sure what the problems is. I also rebuilt the carbs and changed the gaskets on the rave valves. Need some help.
Kyle Brunson your problem is you have a air leak which will lean it out and cause it to high Rev or you are not getting enough fuel that will cause it to because your air fuel mixture will be off and it will lean and rev
Shannon Williams......Will it run like that with a leak in the exhaust?
Kyle Brunson no that will not cause it
Would adjusting the high speed and low speed screws help? I also put bigger pistons in it.
Shannon Williams the high speed screws only can turn just a little bit not even a full 180 but I have those in the middle and the low speed at 1.5 turns. The low have the t bolt where you can turn a lot more
when you say lightly seat, do you mean screw all of the way in until you feel slight resistance? Just want to make sure before I possibly ruin the brand new carburetor . :)
Yes
good video, could you tell me about yamaha gp800r 2004 please, I've been looking for that information for a while but I couldn't find
Are you just needing the high and low speed settings for a GP 800
If it won't idol without throttle and floods without throttle do you think it could be the low speed? It's had carb rebuilds
R.J Jetskivids u have a air leak check your gas cap
Shannon Williams surely not. Not something that simple after all this trouble I've been through
Shannon Williams do you mean in the engine? My gas cap is in good condition
A bad or loose gas cap on a two stroke will blow the topend on your motor
R.J Jetskivids it's true a bad or loose gas cap can blow your motor
Hello,
Can you send Me the List ? For Yamaha waverunner gp800?
I have a 1996 seadoo spx it seems to be leaking fuel it's now a steady drip but I reach under the carb and can see and smell fresh fuel I changed the fuel lines it's not coming from the lines where eles could it be coming from?
Mike Hubbs it is probably one of your diaphragm covers and make sure your needle is holding
Shannon Williams I will check that thanks for the info just trying to not blow up this summer.
Mike Hubbs and always do a fuel pressure check on your main gas line or you will blow your motor
Can u do a video on where ur fuel hose go that may be my problem
What jet ski do you have and I will tell you the fuel hose routing
Yeah I cant find this high low speed information either for my seadoo xp 657 can you help please
What year
What's the rotation on a Yamaha WaveRunner 3
What size motor
I have a 1984 Kawasaki js440. It wont start when cold. Reset the carb to factory. Help
What kind of carburetor kits did you use
If you're having a cold start problem it's usually a fuel issue have you done a fuel pressure check to make sure the system is holding between 5 and 7 lb
Hey Shannon Williams great video but at end you just say go one way or the other if I pin it and it falls on face for a sec then takes off what u think getting to much fuel at idle taking a sec to burn off its brand new carb like one u had made for gs but put on gsi since they don’t make carb for gsi anymore
If it takes off fine and then it falls on its face then it could be your high-end but if they high-end takes off fine and the low and takes off fine and it falls on its face it can be a fuel delivery problem such as the small clear circular diaphragms in your fuel pump make sure there is no hole and make sure that your selector valve on off Reserve valve is not clogged
Subscribed and liked
Could you please tell me how to adjust the pilot on js 440 1988
Everything is messed up i just want the oem settings
And everybody has a different opinion
Can you help me ?
I need
High
Low
Pilot
Low 1 high 5/8 both are plus or minus 1/4 of a turn
@@shannonwilliams601 thank you so much for replying
What about the pilot ?
@@jimmy2fois263 there is no pilot jet it has a low speed jet and a high-speed jet they are usually marked L & H if not usually the low speed jet adjustment is on the bottom and the high-speed is on the top
@@shannonwilliams601 there is 3 t adjusters
One on the right alone wich i believe is low speed
On the left there is bottom wich i believe is pilot
And the top one wich i believe is high speed
@@jimmy2fois263 the third one is the idle adjustment
SBT.com seems to be shut down.... Know of anywhere else I can find the specs? 1990 js440 btw...
What about if the high says 0 that mean it has to be fully screwed in?
Afro 21.2 yes that's right but both settings can vary a 1/4 turn
Is there any way you can send me the carburator adjustment chart papers from sbt I could not find what you are looking at
Just call them and ask for tech support and they will walk you through it
Thank you so much, this was very very helpful
No problem at all glad I can help
I went on their website could not find the setting
Great video, do you still around? Have a question
Sure what question do you have
Shannon Williams Thanks for the reply, i have a mikuni sb40i and the throttle return spring is loose, is not tight like is suppose to, is not doing his job. I have search everywhere but cant find exactly how to put it in the right position.
What jet ski are you working on
Shannon Williams 97 seadoo gsi
1994 wave runner III 700 cant find factory jet settings
They do not have a setting for a 700 so start it one turn out on the low-speed put it in the water and start going 1/4 in and out till you find it and then start with 3/4 turn out on the high-speed until you find it
I can't find setting on 1995 sea Doo speedster carbs
Is it the single 787 or twin 787
Hello my friend, need help to afination te carburante off my Polaris SL 750. Thanks
Are you in Fort Worth or close by
I need to do iT myself 2 mine got a fall back at high speed and no instant gas when I take off it takes a few seconds to respond
Savage Crew this is probably not your problem it's probably a fuel issue
Shannon Williams iT needs to be adjusted the previous owner fucked it up they didn’t know what they were doing to my knowledge the low speed adjuster is open almost 2 turns that’s way to much and the high speed is at 3/4
Savage Crew o ok yeah then you might want to check it as,well as the pop off pressure that will make it do that as well
Shannon Williams o I am first gonna try to adjust it see if it helps if it doesn’t make any difference I will check the pop off pressure
Thanks for couple bland statements. Hey when you Tune a carburetor you wanna turn the low speed adjustment in and you wanna turn the low-speed out and then do you wanna go ahead and turn it in and turn it out thanks for the help
How do you set the idle?
You just turn the idle screw on the carburetor all it does is put tension on the throttle cable
On most Sea-Doos the idle out of the water should set to 3000 RPMs
where can i find that chart
Sbt.com.
After you click on the website scroll all the way down click on technical after that click on articles then scroll down to stock carburetor settings
I should also add that if you go full throttle it stops for just a second then shoots off
Cant find the high low speed settings on the SBT.com web site
Isidro junior
www.shopsbt.com/forum/showthread.php?t=40499
awesome fid dude thanks!!!!
No problem I'm glad I could help
I said sbt.com how much more specific can I be
You could go to the actual site and show us where the link is to the settings, cause I looked for it for 25 minutes and cant find them
www.shopsbt.com/forum/t40499/ I found it in the forums section of their website under Technical Articles / F.A.Q, its the top sticky post there.
What if you do that and it’s still bogging
@@devshewitt4809 then you have another fuel problem
Shannon Williams can i email you
TKS really helpful
I truly do not know where the hell you found there’s information on SBT I went through the whole website
Go to sbt.com scroll all the way down to technical click on that then scroll down to articles click on that and everything is there
@@shannonwilliams601 Awesome thank you so much you’re a lifesaver and a money saver I almost said screw it and bought a new carburetor so thank you!
@@danielholmes481 no problem glad I could help
Hello! Thanks for your help with your video. For a better result, I wanna try follow the instruction in sbt forum, but the website can't log me in for download the manual. Can you help me? Maybe you can send me the PDF instrucion for Kawasaki!? thanks a lot!
What is the year make and model
@@shannonwilliams601 1989 650 sx! Thanks
Just go to sbt.com and soon as the first page opens scroll all the way down to the bottom then click technical after that it will change screens and then you click articles and then scroll down in the carburetor settings are right there
What if u have dual carb..
They usually set the same unless the chart specifies otherwise
Hallo, Download link???
Senk you
No, there is not plastic cap.
Thanks Shannon
that has been drilled out and replaced by someone so it is not adjustable
"Falls on its face" ???
Means cuts off or about cuts off!
Devs hewitt thank you!
I am currently having this problem with my wave venture 1100, after WOT if i completely let go of the throttle it will bog and die.
a flex screw driver
I have a 1996 SPX brand new carbs, set up by a sea doo dealer. It has a miss at idle, high speed also and it falls on takeoff for a second or two, is that a Low and High adjustment? Thanks, Marc
Here is the link www.shopsbt.com/forum/attachments/3778d1395759330-sea-doo-stock-carb-settings.pdf
yes
Sweet phone video bro
hey
Toni Järvinen. yes
I have 1998 arctic cat tigershark 770, and there is mikuni carbs, looks pretty much same as this on video but the "high-speed adjust screw" is different? Could it be non-adjust? Because it looks like just a normal jet?? (nr. 58 on it) but some SBT manual what i found on internet, says "high-speed adjust: 5/8" thanks.
Is there a plastic removable black cap on it
q
no, there is not plastic cap and the spring missing too. only screw look a like regular jet with tiny holes side of it
the donot have all these for download sbt sucks
Yes they do it's just that some people are too stupid to find them
Why even take the time to make a video if you’re not gonna think about what you’re gonna say
Everybody else seemed to get the point just because you can't and you're a dumbass not my fault don't waste somebody else's time f*** face
Shannon Williams - f$&$ face? Low iQ individuals should not make instructional videos. Critique - next time give actual help to instructional video.
just sbt.com
sbt.com
I Still can't find the instructions on this site