A huge thanks for your videos in general, but this one was the best! My 92 Polaris 350L would only run on half choke. After viewing your video on Mikuni carb cleaning, maybe 10 times, I worked up the neve to try it. Your instuctions were clear. My Polaris runs better than new! I particularly liked your cleaning of the outside of the carb first to prevent carb from dirt and grime later. Again thanks, I owe you big time Ken
Thanks for posting this videos on how to rebuild the carb, it helped me out. Also very detailed on how things work and how to clean each part. Thanks Again
You can just adjust the idle with the idle adjustment screw on the side of the carb. It is a large phillips screw with large ridges on it. Turn it in (clockwise) to raise rpm. Adjusting the needle will mess up the tune. Raising the needle will richen the fuel air mixture as you are revving it up. If it is too rich it will foul spark plugs easily.
The needle has a rubber tip to seal. Make sure the floats are moving. With the carb in half you can also pour gas into the bowl and make sure they float good. The float lever tab could be adjusted to high. To adjust bend the tab that touches the needle top up so that the floats press harder and engage sooner.
Thanks Sixtyfiveford, I was able to remove and clean my 2005 Trailblazer's carb in an hour after watching your video. After that bike starts up much better. Thanks again from South Africa.
If starter fluid won't make it fire it can only be a few things; your spark plug is fouled/shorted, engine flooded or you have low compression. I would guess the plug or flooded. Pull the plug and turn it over half a dozen times and install a new or cleaned spark plug (clean by heating the tip of the plug to cherry red with a propane torch).
Been doing this stuff for 45 years (or more) and just had my carb appart for a cleaning and I ended up with a spare washer! i'm like WTF??? Watched your vid and noticed they had a washer/spacer btw the main jet and the part it screwed into. Good vid brother. Thanks for taking the time to make it.
I must have not followed the instructions correctly and carb cleaner shot back into my left eye! I washed it out and went back to it... Idling like a champ now!!
Great video, gonna give my sons a good cleanup tomorrow. We went to our local riding spot today and it wouldn't start. I pulled the carb and gave it a "quick" clean on the spot, but hoping a real good clean will get her up and running ! thanks for posting this !
Permatex #2. It just has a 2 on it and says gasket sealant. You can find it at any auto parts store. This is the only thing that I have found that is fuel resistant. Put it on and let it tack up. It will turn to a tar like constancy and seal up your bad gasket. Put the bowl back on and you should be good to go( I usually like to let it sit for a few hours before exposing it to gas).
thanks for the video man I have a 90 trail boss and ran like crap until I watched your video now it purrs thanks again only cost me 30 bucks for the rebuild kit and carb cleaner
Hey! it's people like you that take time to help me or those of us that might be unsure how to do a carb rebuild clean...liv'n in the pines sometimes need to make sure information is good..no part stores here...not sure if still around but thanks my friend....Good stuff man...Tear'n he down in morn...."Highpines"
Yep helpful...also was wondering..I see that the chock knob thingie is a flip half full on that quad where mine is a pull knob?...think I could change mine to a flip knob?....just easier to use when starting you know?....Thanks
At 3:40 I am spraying out the "seat" and at 4:02 I am holding the "needle". If your carb is leaking out then the needle and seat aren't sealing. This can be because the float is sticking, debris on the seat/needle or the needle tip is bad. Shifting: All 250 Trailblazers I have ridden take a good 3-5 seconds to let the engine idle down before you can shift. If it jerks when you shift it into gear or is hard to get out of gear then your idle speed is set to high.
Going to hit this sucker tonight. Just bought a 92 Trail Boss 250 4X4 yesterday. Bogs and will only stay running at low RPM with feathering. Hoping a good cleaning will do the trick.
sixtyfiveford puked it all apart and cleaned, and the Idol jet was fully plugged. Cleaned it out with some copper wire and carb spray and it made a big difference. Ran and idled. But, not it's hard to start until it warms up a lot it just randomly bogs and dies. Really want to figure this out.
I bought two cheap four wheels old and beat up i have been casually been fixing them on slow boring days but one problem i have had is finding the right choke setting.
There's really no setting the choke. It is either on or off. As far as starting when cold. The choke should be on and do not press the throttle at all. Once the engine fires then you can give it a little gas.
Great video! I do my carbs pretty much same way, I like mine sqeaky clean too, I use bread bag ties, and electric duster in cans from Walmart or? Nice job.😊
When I screwed the throttle cable back in the throttle has extreme free play and the machine idles real high. It was fine when I unscrewed from the carb. It's a Polaris 200
great instructions.. i have a 1986 polaris 250 after that was said and done on cleaning the carb there is a line that they say is a vacume line next to the idle screw that when i turn it on fuel comes out of there like crazy and spills everywhere. and the carb where the air intake goes had fuel coming out of it as well.????
Should put a annotation on yours --Don`t loose the main jet washer it will change your fuel supply ,--My bud did that then he gives me the machine to fix not telling me he had it apart .
Hi, I just picked up a 2002 Trailblazer 250 that has been in storage since the summer of 2002 after only One 4hr ride by a woman who it was bought for who watched her husband flip his quad that day and get hurt badly. She never rode it again. Anyway, It obviously needs the carb cleaned. I have cleaned many many carbs of all types. Last time I did one on a T-blazer was 8 yrs ago. So my question is just removing the carb. I remember having to remove alot of the bodywork to get to it. Was just hoping you could remind me just what needs to come off and the order just to save me some time and grief. Thanks, Ian
Also I think that screw it here Mr. screw popped out I was going through the woods here at my property and just out of nowhere the thing just quit would not start back up and I bought it back to the garage and it’s been sitting for about two years and I just now decided to get it going again because I’ve got another Polaris 325 four stroke but that oil to Bus telling you about it the tube is all green you can just tell oils be going through it he probably probably used to be clear but it’s turn green now so I’m guessing is the difference and may be my year compared to yours
Smashing :-) Nice to know you have done a spot on job, so if the machine still has a problem then its not the carb and you can ignore it. Ooow loose floats, thats an odd style to me, im used to the older fixed to the plate type. Engine sounds happy :-)
Question for you about the bowl gasket. Today I took apart the carb of a cheap bike motor to clean the float valve, and the gasket was deteriorated and some of the material was in the bowl. I removed/cleaned off the gasket. Now for my question. Can I use silicone liquid gasket for the bowl gasket? There is no way I can make a paper one because of the intricate shape. Thanks in advance.
my bosses trailboss is POURING gas out of the muffler,yes muffler.and also the obvious drain tube. it floods instantly.2 pulls. so i cleaned the gunk out, Full carb cleaning even a little more extensive thaN you did. floats are fine needle looks and seems to be functioning correctly as does the entire carb. I could be wrong. the only thing i did notice is that the throttle valve takes longer to drop back down once i let go of thumb throttle,like it is sticking have you any idea wtf it could be?
Thankful for instruction on my first carb clean. Now I have fuel just running straight out of the overflow line on the bottom and will not start. Thoughts anyone?
thank a lots nice video help me lots i clean it but i change my float needle because was in idle over flow by the hose bottom chsange the float needle thank for youre advise
Yes sir High watched your video did everything just like what you doing what I have is a trailblazer two-stroke it’s a 1999 looks quite a bit like what you have there I realized after watching your video that my small little air mixture screw was completely gone spring screw everything so I bought a kit because for some reason I couldn’t get a carburetor for two stroke they just kept saying for stroke so I bought me a kit I just put that on today watched your video again and I am getting nothing I do get spark come to my spark plug I am getting fuel to cause a spark plug is usually pretty wet but I noticed I don’t have that oil line for the two-stroke going in right in the side of the carburetor mine goes in to the combustion chamber right underneath the carburetor Is there anything you can add to that to my situation
If the plug is wet it's flooding the engine and will not start. To unflood the engine you can pull the spark plug, no choke, full throttle and crank the engine over for 5 seconds. Once a 2 stroke spark plug is fouled it has to be cleaned to work. This can be done by heating the tip red hot with a propane torch, or alternately cleaning it manually with carb cleaner and letting it dry.
im working on a 250 trailblazer, it was idling ok, but the carb needed cleaned any way. got it all cleaned up and now it wont idle, it will run and rev up, but dies when i let off throttle, i tried adjusting the throttle needle up one notch. but no luck, any Ideas?
thank i lern a lots youre video do you know if for winter we need change main jet and do we need change adjustment of the needle or only change the main jet for wintewr i have polarisscrambler400 2002
Thanks! I still am having trouble starting my atv. I was ridding it the other day and had no problem the next day i tryed to start it back up but got nothing. my spark plug has a good spark, i sprayed starter fluid and and it still didn't want to turn over, i clean the carb and still got nothing, im getting good suction but im not getting any gas on my hand im getting a good flow of gas to the carb. Any help will be appreciated. Thanks Anthony
Excellent instructional video that will help a novice DIY'er! Thank you. Also, my 94 Polaris Trail Boss 250 is running very high idle. If it's not the idle set screw, what would you suggest I look into next?
Thanks for the very quick reply! I'll get a new needle and try to free up the float. I did notice how you had to pound on the pin a bit to free it and install it. Mine was very loose and and required much less effort to disassemble. Problematic? Cheers!
I cleaned the carb on my trailblazer 250 and replaced the choke and throttle cable and I started it and it dosnt smoke like it used to....I shut it off immediately because I felt like it wasn't getting enough oil...could this possibly be from the 2nd cable on the throttle cable?the one that goes beneath the carburetor to the lever looking thing?
Well I told him it`s the wrong jet for the altitude he did`nt know what I meant so I jetted it for our height and the thing was like a rocket but the plug went white WTH so moved the E clip down to fatten it up then it would bog , so then he says well when I took it off a little small washer fell under the motor so I knew right away found it put it back way he went .
Hey great video BTW I have a quick question I got a 2000 trailblazer its got spark and air I cleaned my carb exactly like u did all the passages are clear but it'll turn over and won't start
averyty96 These are picky about compression and if it is too low they won't start. Put a little(1 tsp) gas down the throat of the carb or in the spark plug hole to see if it will start and run for a few seconds. If not pour a little motor oil(1 tsp) into the spark plug hole. This will raise the compression for a few seconds and allow it to start/run if everything else is good.
Hey good vid. I got a question you might know. I have a 2001 trailblazer 250. And I’ve rebuilt the carb twice. Atv was sitting for 6 years. First time I cleaned carb, lines tank everything perfectly and found it idles perfect when cold never needs the chock to start but after 20 minutes of riding vehicle had perfect top end but won’t idle and dies like it’s running out of gas then takes a while to start. After cooling down starts up perfect. Rebuild the carb again but replaced all jets, seals, gaskets and needles and retested. Verified the fuel lines were clean and had proper fuel flow but after 20/25 minutes of riding or when getting hot it’s dies like it runs out of gas at idle. I have to keep hitting the throttle to keep it alive at idle. Air screw is at spec, have proper spec fuel. Clean air filter and found the fuel take is not creating a vacuum either. I don’t know what to do anymore. I took it to a Polaris dealer and they said they couldn’t get it to duplicate and gave it back. Any thots
Dieing/running problems when hot can be a few things. Ethanol in fuel can cause this due to it's much lower boiling point. Essentially causing vapor lock. Spark issues from overheating coil can also cause hot running issues. A carb set too lean will cause an engine to run significantly hotter than normal.
@@sixtyfiveford After verifying the coil and magneto were operating normally and are with in spec of what the service Manuel specified I got it figured out. I Performed a compressing test when cold and hot. I have 116 psi when cold then it drops to 98psi as soon at the engine reaches temps over 140°. The cylinder or cylinder rings are losing lots of compression at idle when hot. Gonna have to rebuilt. Thanks for your info and help.
I cleaned out the carb on mine did everything you did but when I cut the fuel back on when it was reinstalled fuel was pouring out if the over flow hose I was thinking that maybe the floats where stuck but they where fine when I cleaned it. Any thoughts on why this happened thanks
Awesome Video! Thanks. couple questions... 03 trailblazer 250... carb is identical to yours. I took it apart mainly because it just keeps leaking gas, even when it's sitting. I have a hunch it may be the needle and seat from what I read. My question is what parts are they and how do you know if they need replacing? Next, I have to wait a little longer than normal to shift from High into Reverse because it idles down slowly. I did notice one float is less freely moving. Thanks a LOT!
I was riding my 01 polaris trailblazer and it started bogging losing power till it stopped and cut off. It wouldn't start back. I just watched your video and cleaned my carb the exact way you did and it still won't start. Please help... Any suggestions?
I done tried this like 5 times and for some reason my trailblazer is leaking gas like crazy and won't start I just rebuilt the top end had it running then it started pouring gas and I cut it off and it hasn't started back for me I'm even getting gas in the belt drive cover somehow when i don't know how gas could even get in there
I Have a question for you. I am tiring to get my 250 running and I have rebuilt the carb as per your video (outstanding job) after installing it correctly and tried to start it I could get it to start and it would start and only idle, if I give it any throttle it will just die out and then hard to start after that, So what else I can do or should I check?
Your symptoms are the Main Jet. It probably picked up something from the fuel line or tank once you reinstalled it. Remember to give it ZERO gas when starting it. The choke circuit doesn't function if the throttle is even pushed a little.
Hey, thank you for posting this video. I just cleaned out my carb. Now when I give it has, it bogs down when I punch the gas. Have you ever had that problem? How did you fix? Thanks!
hello i just want to know if the carb got overflow and leaks wont get start? i have 98 trialboss 250 also i use pull start not electric start bc i didnt get a new seloniod start tho
What is the hose from the engine to the carb called? The carb has been rebuilt but it seems to wanna choke out after your going 25 or so....also it almost dies when try to go in reverse. Any ideas? Thanx
My 01 trailblazer is leaking gas through the exhaust. Any tips on whats going on. Also not related to the video, but i can pull start it pretty easy but it will not electric start. It turns over well and has a full battery, but just wont start unless pull started.
Evan Schmidt Good chance the needle/seat in the carb aren't seating and a little gas is pooling up. Pull your spark plug and look at it. If it's dry and black then too much gas is going through the engine. The starters are notorious for getting water in them and either not working or turning too slow.
It's been a while since I've been inside the gear box on one of these. First I would make sure the linkage isn't binding or the plastic fender isn't pushing on the lever. Other than that there should be a detent ball that holds it in high inside the transmission.
@sixtyfiveford I can start my engine and everything but I have to give it lots of gas and I can’t let it idle or it dies. I have to keep my hand on the throttle so it won’t bog down or it just will quit. Any tips?
1991 Polaris Trail Boss 250 4x4. Rebuilt carburetor but won’t start on its own without spray.. should I take apart and clean it all again. I put it back just like you have. When I got it it none of the vacuum hoses were connected. I have no idea where they go. Not sure if that is why it won’t start. Thoughts.?
The hoses are just vents and really not that important. As far as not wanting to start. The Choke system on these require that the throttle be fully closed to function. So flip the choke on, don't touch the throttle and attempt to start. Once it fires you can press the throttle to rev it.
sixtyfiveford thanks. Took it all apart again o.O sprayed it all out everywhere. Took forever to start with the pull start rode it around the yard 20ish min. Turned off tried to start again. Nothing. Pushed into the garage threw my arms up. Dunno if the choke needs to be adjusted or what. But since the starter has a short and lazy to take everything apart to get to it, pull starting is the way to go right now :(. Stuck. Not sure what to do.
Hey quick question i did everything in this video and for some reason i put it back together and would not start, so i replaced the spark plug but nothing and suggestions would be awesome thank you
thanks for the great video! But I have a question when you took the spring off was there a big washer that came off too? I don't remember seeing it but it feel on the floor while i was working. Thanks Anthony
My carb has been messed with someone didn't have a clue what they were doing. I reset and clean it all but the idle adj is there a certain setting for it or are they all their own breed.??
Ka'Nyetria Tellis You need Spark, Fuel and enough Compression for an engine to run. So check for spark. Then check for fuel by pouring a LITTLE into the throat of the carb and see if it runs for a second. Finally would be to do a compression test to see if the engine is to worn.
A huge thanks for your videos in general, but this one was the best! My 92 Polaris 350L would only run on half choke. After viewing your video on Mikuni carb cleaning, maybe 10 times, I worked up the neve to try it. Your instuctions were clear. My Polaris runs better than new! I particularly liked your cleaning of the outside of the carb first to prevent carb from dirt and grime later. Again thanks, I owe you big time Ken
Ken Andree Awesome. I'm glad the video helped. Thanks.
Thanks for posting this videos on how to rebuild the carb, it helped me out. Also very detailed on how things work and how to clean each part. Thanks Again
Awesome, I'm glad this was helpful.
You can just adjust the idle with the idle adjustment screw on the side of the carb. It is a large phillips screw with large ridges on it. Turn it in (clockwise) to raise rpm.
Adjusting the needle will mess up the tune. Raising the needle will richen the fuel air mixture as you are revving it up. If it is too rich it will foul spark plugs easily.
The needle has a rubber tip to seal. Make sure the floats are moving. With the carb in half you can also pour gas into the bowl and make sure they float good. The float lever tab could be adjusted to high. To adjust bend the tab that touches the needle top up so that the floats press harder and engage sooner.
I love how you know each and every passege in these. good stuff!
Thanks. Hopefully it helps to get your quad up and running.
Hey Thanks. Nothing like the sound of a two stroke.
Thanks Sixtyfiveford, I was able to remove and clean my 2005 Trailblazer's carb in an hour after watching your video. After that bike starts up much better. Thanks again from South Africa.
Jaco Viljoen That's Great.
thanks so much you make my day you are soo good explainig step by step God bless you my friend
If starter fluid won't make it fire it can only be a few things; your spark plug is fouled/shorted, engine flooded or you have low compression. I would guess the plug or flooded. Pull the plug and turn it over half a dozen times and install a new or cleaned spark plug (clean by heating the tip of the plug to cherry red with a propane torch).
Been doing this stuff for 45 years (or more) and just had my carb appart for a cleaning and I ended up with a spare washer!
i'm like WTF???
Watched your vid and noticed they had a washer/spacer btw the main jet and the part it screwed into.
Good vid brother. Thanks for taking the time to make it.
Been doing it wrong i guess for 45 years
Awesome video man!! Just finished cleaning! 97 trail blazer hasn’t been ridden in 10 years. We’ll see if she fires up! Thanks for the awesome video!!
Awesome! These are fun machines.
I must have not followed the instructions correctly and carb cleaner shot back into my left eye! I washed it out and went back to it... Idling like a champ now!!
Great video, gonna give my sons a good cleanup tomorrow. We went to our local riding spot today and it wouldn't start. I pulled the carb and gave it a "quick" clean on the spot, but hoping a real good clean will get her up and running ! thanks for posting this !
Thanks.. Hopefully the video helps a little.
The big washer is probably from the air box. It mounts between the frame and the air box and is held in place with one of the 10mm bolts.
Permatex #2.
It just has a 2 on it and says gasket sealant. You can find it at any auto parts store.
This is the only thing that I have found that is fuel resistant. Put it on and let it tack up. It will turn to a tar like constancy and seal up your bad gasket. Put the bowl back on and you should be good to go( I usually like to let it sit for a few hours before exposing it to gas).
thanks for the video man I have a 90 trail boss and ran like crap until I watched your video now it purrs thanks again only cost me 30 bucks for the rebuild kit and carb cleaner
camp man 86 Awesome.
knowledge. thanks for your help bud just bought one of these quads never worked on quads or carbs before thank you again
Hey! it's people like you that take time to help me or those of us that might be unsure how to do a carb rebuild clean...liv'n in the pines sometimes need to make sure information is good..no part stores here...not sure if still around but thanks my friend....Good stuff man...Tear'n he down in morn...."Highpines"
I'm glad the video was helpful.
Yep helpful...also was wondering..I see that the chock knob thingie is a flip half full on that quad where mine is a pull knob?...think I could change mine to a flip knob?....just easier to use when starting you know?....Thanks
It's always a good sound when they start when put back together!!! Couple of nice vids, thanks!!!
Yeah, these floats are a rare one. I think it allows for a skinnier carb by not having to deal with the arc angle of a float.
Excellent job on the video...planning to clean my carb next week and your instructions surely helps.
Carlos Sarria Thanks.
At 3:40 I am spraying out the "seat" and at 4:02 I am holding the "needle". If your carb is leaking out then the needle and seat aren't sealing. This can be because the float is sticking, debris on the seat/needle or the needle tip is bad.
Shifting: All 250 Trailblazers I have ridden take a good 3-5 seconds to let the engine idle down before you can shift. If it jerks when you shift it into gear or is hard to get out of gear then your idle speed is set to high.
Going to hit this sucker tonight. Just bought a 92 Trail Boss 250 4X4 yesterday. Bogs and will only stay running at low RPM with feathering. Hoping a good cleaning will do the trick.
MolonLabeUSA Sounds like a dirty main jet.
sixtyfiveford puked it all apart and cleaned, and the Idol jet was fully plugged. Cleaned it out with some copper wire and carb spray and it made a big difference. Ran and idled. But, not it's hard to start until it warms up a lot it just randomly bogs and dies. Really want to figure this out.
These do suffer when the engine compression gets too low. They will have a lot of symptoms that are hard to trace.
Awesome. Glad you got it worked out. Have fun riding.
Your stock jet is set up to handle a wide variety of conditions and doesn't need to be changed for winter.
The throttle piston slide only goes in 1 way. Make sure it is turned right so it goes all the way down.
thanks I appreciate your help and we will check on that tomorrow and hopefully get that problem fixed
+John Tsarnas Sometimes they just get hung up when you reassemble the carb.
Amazing video! Thanks! Exactly what I was looking - and not my ATV runs a lot better!
Awesome.
I bought two cheap four wheels old and beat up i have been casually been fixing them on slow boring days but one problem i have had is finding the right choke setting.
There's really no setting the choke. It is either on or off. As far as starting when cold. The choke should be on and do not press the throttle at all. Once the engine fires then you can give it a little gas.
Thx, I knew it couldn't be as troublesome as I recall it on the one I had yrs ago.
You're welcome. Thanks for watching.
Excellent video on the 250 carb. Thanks for sharing it.
Thanks, I'm glad it was helpful.
Thanks for the encouraging comment.
Great video! I do my carbs pretty much same way, I like mine sqeaky clean too, I use bread bag ties, and electric duster in cans from Walmart or? Nice job.😊
Man that 2smoke sounds good, good job on the carb man.
yeah, this two-part video gets added to the Quick Reference bookmark!
Hey man good video. She sounds great
Yeah, sometimes the pins are loose, not an issue. Let me know how it goes.
The float needle is not sealing. This can be because a result of: bad needle, bad seat, dirty needle/seat, faulty float or sticking float.
Thanks... Saved time and lots of money
Awesome, I'm glad it was helpful.
very great job explaining as you were working, thanks!
I'm glad it was helpful. Thanks for watching.
When I screwed the throttle cable back in the throttle has extreme free play and the machine idles real high. It was fine when I unscrewed from the carb. It's a Polaris 200
great instructions.. i have a 1986 polaris 250 after that was said and done on cleaning the carb there is a line that they say is a vacume line next to the idle screw that when i turn it on fuel comes out of there like crazy and spills everywhere. and the carb where the air intake goes had fuel coming out of it as well.????
+John Tsarnas Sounds like your float is sticking and not sealing the needle seat.
That wouldn't have anything to do with leaking, but it should move freely. The cable needs a little lubrication.
Should put a annotation on yours --Don`t loose the main jet washer it will change your fuel supply ,--My bud did that then he gives me the machine to fix not telling me he had it apart .
Hi, I just picked up a 2002 Trailblazer 250 that has been in storage since the summer of 2002 after only One 4hr ride by a woman who it was bought for who watched her husband flip his quad that day and get hurt badly. She never rode it again. Anyway, It obviously needs the carb cleaned. I have cleaned many many carbs of all types. Last time I did one on a T-blazer was 8 yrs ago. So my question is just removing the carb. I remember having to remove alot of the bodywork to get to it. Was just hoping you could remind me just what needs to come off and the order just to save me some time and grief. Thanks, Ian
Ian S Just the seat and air filter box. It pulls out from the top.
Thanks Dusty.
great to see you back making awesome vids
Helped me tremendously,thank you brother.
You're welcome. Glad it helped
Also I think that screw it here Mr. screw popped out I was going through the woods here at my property and just out of nowhere the thing just quit would not start back up and I bought it back to the garage and it’s been sitting for about two years and I just now decided to get it going again because I’ve got another Polaris 325 four stroke but that oil to Bus telling you about it the tube is all green you can just tell oils be going through it he probably probably used to be clear but it’s turn green now so I’m guessing is the difference and may be my year compared to yours
Great video about to clean and or rebuild. Thanks for the info and video.
You're welcome. Take care.
Smashing :-)
Nice to know you have done a spot on job, so if the machine still has a problem then its not the carb and you can ignore it.
Ooow loose floats, thats an odd style to me, im used to the older fixed to the plate type.
Engine sounds happy :-)
Very helpfully ! Thanks very very muchhhh💪🏻👌🏻
Thanks, I'm glad you liked it.
Question for you about the bowl gasket. Today I took apart the carb of a cheap bike motor to clean the float valve, and the gasket was deteriorated and some of the material was in the bowl. I removed/cleaned off the gasket. Now for my question. Can I use silicone liquid gasket for the bowl gasket? There is no way I can make a paper one because of the intricate shape. Thanks in advance.
I wish you could of make a video of how to put it back
Hello everyone. Any idea where to find a complete carb replacement for my 2004 250 trail blazer? It’s a 2 stroke.
my bosses trailboss is POURING gas out of the muffler,yes muffler.and also the obvious drain tube. it floods instantly.2 pulls. so i cleaned the gunk out, Full carb cleaning even a little more extensive thaN you did. floats are fine needle looks and seems to be functioning correctly as does the entire carb. I could be wrong. the only thing i did notice is that the throttle valve takes longer to drop back down once i let go of thumb throttle,like it is sticking have you any idea wtf it could be?
Thanks...
That was a very useful video. Thanks!
Nathan Carroll Awesome, I'm glad it helped.
Thankful for instruction on my first carb clean. Now I have fuel just running straight out of the overflow line on the bottom and will not start. Thoughts anyone?
Your float is stuck down or your needle/seat are not installed correctly allowing gas to continuously flow.
thank a lots nice video help me lots i clean it but i change my float needle because was in idle over flow by the hose bottom chsange the float needle thank for youre advise
Yes sir High watched your video did everything just like what you doing what I have is a trailblazer two-stroke it’s a 1999 looks quite a bit like what you have there I realized after watching your video that my small little air mixture screw was completely gone spring screw everything so I bought a kit because for some reason I couldn’t get a carburetor for two stroke they just kept saying for stroke so I bought me a kit I just put that on today watched your video again and I am getting nothing I do get spark come to my spark plug I am getting fuel to cause a spark plug is usually pretty wet but I noticed I don’t have that oil line for the two-stroke going in right in the side of the carburetor mine goes in to the combustion chamber right underneath the carburetor Is there anything you can add to that to my situation
If the plug is wet it's flooding the engine and will not start. To unflood the engine you can pull the spark plug, no choke, full throttle and crank the engine over for 5 seconds. Once a 2 stroke spark plug is fouled it has to be cleaned to work. This can be done by heating the tip red hot with a propane torch, or alternately cleaning it manually with carb cleaner and letting it dry.
Seriously good video - thank you!
Great. I'm glad it helped.
im working on a 250 trailblazer, it was idling ok, but the carb needed cleaned any way. got it all cleaned up and now it wont idle, it will run and rev up, but dies when i let off throttle, i tried adjusting the throttle needle up one notch. but no luck, any Ideas?
Thanks for the help
frank laidlaw Yeah, glad the video helped.
thank i lern a lots youre video do you know if for winter we need change main jet and do we need change adjustment of the needle or only change the main jet for wintewr i have polarisscrambler400 2002
Thanks! I still am having trouble starting my atv. I was ridding it the other day and had no problem the next day i tryed to start it back up but got nothing. my spark plug has a good spark, i sprayed starter fluid and and it still didn't want to turn over, i clean the carb and still got nothing, im getting good suction but im not getting any gas on my hand im getting a good flow of gas to the carb. Any help will be appreciated.
Thanks Anthony
I'm trying to find out where do my carburetor vacuum lines go to on my1995 polaris trail boss250.thanks,,,
Nice job,,
Excellent instructional video that will help a novice DIY'er! Thank you.
Also, my 94 Polaris Trail Boss 250 is running very high idle. If it's not the idle set screw, what would you suggest I look into next?
+Keith Goerl It should be the idle set screw. If not it would be a kinked throttle cable.
Thanks for the very quick reply! I'll get a new needle and try to free up the float. I did notice how you had to pound on the pin a bit to free it and install it. Mine was very loose and and required much less effort to disassemble. Problematic? Cheers!
I cleaned the carb on my trailblazer 250 and replaced the choke and throttle cable and I started it and it dosnt smoke like it used to....I shut it off immediately because I felt like it wasn't getting enough oil...could this possibly be from the 2nd cable on the throttle cable?the one that goes beneath the carburetor to the lever looking thing?
thanks alot brutha!!! sick video
Yeah, I'm glad it helped.
Hi i was just wondering if u could make a video how to ajust the idle screw how many turns out thax
Sorry, I don't have any of these Polaris machines around anymore.
Well I told him it`s the wrong jet for the altitude he did`nt know what I meant so I jetted it for our height and the thing was like a rocket but the plug went white WTH so moved the E clip down to fatten it up then it would bog , so then he says well when I took it off a little small washer fell under the motor so I knew right away found it put it back way he went .
Hey great video BTW I have a quick question I got a 2000 trailblazer its got spark and air I cleaned my carb exactly like u did all the passages are clear but it'll turn over and won't start
averyty96 These are picky about compression and if it is too low they won't start. Put a little(1 tsp) gas down the throat of the carb or in the spark plug hole to see if it will start and run for a few seconds. If not pour a little motor oil(1 tsp) into the spark plug hole. This will raise the compression for a few seconds and allow it to start/run if everything else is good.
Hey good vid. I got a question you might know. I have a 2001 trailblazer 250. And I’ve rebuilt the carb twice. Atv was sitting for 6 years. First time I cleaned carb, lines tank everything perfectly and found it idles perfect when cold never needs the chock to start but after 20 minutes of riding vehicle had perfect top end but won’t idle and dies like it’s running out of gas then takes a while to start. After cooling down starts up perfect. Rebuild the carb again but replaced all jets, seals, gaskets and needles and retested. Verified the fuel lines were clean and had proper fuel flow but after 20/25 minutes of riding or when getting hot it’s dies like it runs out of gas at idle. I have to keep hitting the throttle to keep it alive at idle. Air screw is at spec, have proper spec fuel. Clean air filter and found the fuel take is not creating a vacuum either. I don’t know what to do anymore. I took it to a Polaris dealer and they said they couldn’t get it to duplicate and gave it back. Any thots
Dieing/running problems when hot can be a few things. Ethanol in fuel can cause this due to it's much lower boiling point. Essentially causing vapor lock. Spark issues from overheating coil can also cause hot running issues. A carb set too lean will cause an engine to run significantly hotter than normal.
@@sixtyfiveford After verifying the coil and magneto were operating normally and are with in spec of what the service Manuel specified I got it figured out. I Performed a compressing test when cold and hot. I have 116 psi when cold then it drops to 98psi as soon at the engine reaches temps over 140°. The cylinder or cylinder rings are losing lots of compression at idle when hot. Gonna have to rebuilt. Thanks for your info and help.
Thank you
Are the floats supposed to fall out when i flip it upside down?
I cleaned out the carb on mine did everything you did but when I cut the fuel back on when it was reinstalled fuel was pouring out if the over flow hose I was thinking that maybe the floats where stuck but they where fine when I cleaned it. Any thoughts on why this happened thanks
Awesome Video! Thanks. couple questions... 03 trailblazer 250... carb is identical to yours. I took it apart mainly because it just keeps leaking gas, even when it's sitting. I have a hunch it may be the needle and seat from what I read. My question is what parts are they and how do you know if they need replacing? Next, I have to wait a little longer than normal to shift from High into Reverse because it idles down slowly. I did notice one float is less freely moving. Thanks a LOT!
did all that everything looked good then put on started first pull then started leaking gas eveware is the floot stuck?
Hello there umm y you think is fuel coming out from exhaust?
I was riding my 01 polaris trailblazer and it started bogging losing power till it stopped and cut off. It wouldn't start back. I just watched your video and cleaned my carb the exact way you did and it still won't start. Please help... Any suggestions?
Fouled spark plugs can do this. So can lose of compression.
I done tried this like 5 times and for some reason my trailblazer is leaking gas like crazy and won't start I just rebuilt the top end had it running then it started pouring gas and I cut it off and it hasn't started back for me I'm even getting gas in the belt drive cover somehow when i don't know how gas could even get in there
christopher tollison Either the needle/seat are sticking/bad or the float is sticking.
I Have a question for you. I am tiring to get my 250 running and I have rebuilt the carb as per your video (outstanding job) after installing it correctly and tried to start it I could get it to start and it would start and only idle, if I give it any throttle it will just die out and then hard to start after that, So what else I can do or should I check?
Your symptoms are the Main Jet. It probably picked up something from the fuel line or tank once you reinstalled it. Remember to give it ZERO gas when starting it. The choke circuit doesn't function if the throttle is even pushed a little.
Hey, thank you for posting this video. I just cleaned out my carb. Now when I give it has, it bogs down when I punch the gas. Have you ever had that problem? How did you fix?
Thanks!
Bryant Woody This would signify that the main jet isn't delivering enough fuel to the engine. It is more than likely partially clogged.
hello i just want to know if the carb got overflow and leaks wont get start? i have 98 trialboss 250 also i use pull start not electric start bc i didnt get a new seloniod start tho
What is the hose from the engine to the carb called? The carb has been rebuilt but it seems to wanna choke out after your going 25 or so....also it almost dies when try to go in reverse. Any ideas? Thanx
P.S. my hose appears to have a pretty big slit.
My 01 trailblazer is leaking gas through the exhaust. Any tips on whats going on. Also not related to the video, but i can pull start it pretty easy but it will not electric start. It turns over well and has a full battery, but just wont start unless pull started.
Evan Schmidt Good chance the needle/seat in the carb aren't seating and a little gas is pooling up. Pull your spark plug and look at it. If it's dry and black then too much gas is going through the engine. The starters are notorious for getting water in them and either not working or turning too slow.
thanks for the breakdown good vidio.
best carb cleaning video yet but I have another problemwill jump out of high gear any ideas
It's been a while since I've been inside the gear box on one of these. First I would make sure the linkage isn't binding or the plastic fender isn't pushing on the lever. Other than that there should be a detent ball that holds it in high inside the transmission.
Got my polaris trailblazer running great now, but now its leaking gas from bottom of the carburetor dont know why. It wasnt doing that before
Float/needle has some debris that aren't allowing it to close fully.
@@sixtyfiveford okay thanks i will check it out
@sixtyfiveford I can start my engine and everything but I have to give it lots of gas and I can’t let it idle or it dies. I have to keep my hand on the throttle so it won’t bog down or it just will quit. Any tips?
Your idle circuit in the carb is clogged
1991 Polaris Trail Boss 250 4x4. Rebuilt carburetor but won’t start on its own without spray.. should I take apart and clean it all again. I put it back just like you have. When I got it it none of the vacuum hoses were connected. I have no idea where they go. Not sure if that is why it won’t start. Thoughts.?
The hoses are just vents and really not that important. As far as not wanting to start. The Choke system on these require that the throttle be fully closed to function. So flip the choke on, don't touch the throttle and attempt to start. Once it fires you can press the throttle to rev it.
sixtyfiveford thanks. Took it all apart again o.O sprayed it all out everywhere. Took forever to start with the pull start rode it around the yard 20ish min. Turned off tried to start again. Nothing. Pushed into the garage threw my arms up. Dunno if the choke needs to be adjusted or what. But since the starter has a short and lazy to take everything apart to get to it, pull starting is the way to go right now :(. Stuck. Not sure what to do.
Hey quick question i did everything in this video and for some reason i put it back together and would not start, so i replaced the spark plug but nothing and suggestions would be awesome thank you
Try a squirt of gas in the carb throat to isolate whether it is a fuel or spark issue.
yeah i did that now it just reving like crazy but looks like the trottle spring that goes into the carb is tweaked so i might have to order a new one
I tried all the cleaning but my carb overflows as soon as I open up the petcock.. Is there a gasket that's supposed to seal with the needle?
thanks for the great video! But I have a question when you took the spring off was there a big washer that came off too? I don't remember seeing it but it feel on the floor while i was working.
Thanks Anthony
My carb has been messed with someone didn't have a clue what they were doing. I reset and clean it all but the idle adj is there a certain setting for it or are they all their own breed.??
rollpaper1026 As far as the idle setting, just adjust it until it idles good but not to high where you grind when shifting into gear.
My polaris trailblazer 250 its firing, but It just keep turning over and over it want crank.please help any advise I can use.
Ka'Nyetria Tellis You need Spark, Fuel and enough Compression for an engine to run. So check for spark. Then check for fuel by pouring a LITTLE into the throat of the carb and see if it runs for a second. Finally would be to do a compression test to see if the engine is to worn.