How To Adjust Harley Davidson Carburator Air Gas Screw.
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- Опубліковано 24 чер 2019
- How To Adjust Harley Davidson Carburator Air Gas Screw. This Video will show you how to adjust your CV Carburator Air Gas Screw to get the perfect adjustment. This was done on an XL1200 Sportster, And will work on all Harley Davidson CV Carbureted Motorcycle.
#Harlydavidsonfix - Авто та транспорт
🙏If you found this video helpful, please consider sending a couple bucks my way to say thank you by hitting the THANKS button under the video 💲❤. You can't imagine how much I would appreciate it. 🥰
This man was Sent from god himself
Happy to help. Any questions just ask. Thank you for watching and your sub A Cubitt. Let us know how this works out. Ride safe and have a great day.
I have a xl1200 that came to me with a arlen ness air filter I was getting a rough idle, and lots of popping in decel. I upped the idle jet from 42 to 45 and drilled out the plug for the idle air mixture screw after watching your videos. The screw was only 1 turn out. I upped it to 2 and added screamin eagle slip ons as well. Runs great now, thanks a million Rocco!
Happy to read all is went well. Thank you for watching and your sub Dan. I'm gonna send you a video on slide needle adjustment. .ua-cam.com/video/G1XD0hHtwCw/v-deo.html. Let us know what you think. Ride safe and have a great day.
Thank you from New Zealand. I have an Evo 1340 Dyna & love it but it's contributions by guys like you that help keep it working well.
Happy to help, Ride Safe and Thank You for your support.
This was a huge help for me. I spent nearly two weeks trying to figure out what was wrong with my Sportster 1200 until I came across this video that explained how far out the screw should be and what possible solutions could be. Great content, Rocco!
Happy to Help, Any questions just ask. Thank you for your Sub Deron. Ride Safe and have a great day
How does she idle? Air/fuel screw, how many turns out? Is it a crisp throttle response? Send a pitchure of your motorcycle so I could see the exhaust and intake. To Erocco3964@gmail.com. Start by cleaning air filter, and check oil level. Most time that will be a future. Let us know how that works out.
sometimes with newer bikes you gotta reset your idle by turning your bike to run for 10seconds 4x to reset your idle but thats usually if your bike idles good then gets faster n faster, I would try the carb first before doing that tho
I took your advice and replaced my Petcock because the bike was running very rough after 30 minutes of riding. It was idling very fast, then I watched this video and found one of the hose lines was cracking at the bottom of carb. I fixed that and now the 2006 sportster custom is running much better. You saved me a bunch of money and I was able to do it myself. I like learning stuff like this. Again Thank you very much I appreciate your time and advice. Love your video's.
Happy to hear all worked out. Thank you for your support. Ride Safe and have a great day.
Is this start point for the adjustment start fully in or fully out ?
Thank you! I've been chasing an issue on my sportster for weeks. After watching this video and making some adjustments I've finally got it running well.
Happy to read all is well. Thank you for watching and your sub Morgan. Ride safe and have a great day. Any questions just feel free to ask.
Thanks Rocco. Always loving the older Harleys with some good advice.
Happy to Help, Any questions just ask. Thank You for your Sub Bruce. Ride Safe and have a great day
Thanks, I needed this. After watching your video Im more confident on where I ended up. Im 1 1/4 turns out on mine.
Happy to help. Thank you for your support.
Thank you, I've always had Honda or Yamaha. Your a life saver on my first Harley
Happy to help, Any questions just ask. Thank you for your Sub Dennis. Ride Safe and have a great day.
Thanks for the video my bike is rough idleing and carb farting all over the place. This is a great video and explains everything in a very easy to understand way. Keep up the great work.
Happy to help. Any questions just ask. Thank you for watching and you sub Paul. Ride safe and have a great day.
Thanks for the vid. Shout out to you for getting back to everyone in the comments. I read through a lot of them as well as your responses and got some good info.
A lot of people post videos and never respond to comments!
Happy to Help. Thank you for watching and your kind words. Nikasume. Ride safe and have a great day.
Another great video, I’ve learn so much on just two of your videos. It has given me confidence to address a tick over problem I may have. Mike Wales UK.
That is great to hear. Any questions just ask. Thank you for watching. Have a great holiday. Ride safe Hope to hear from you soon let us know how it works out.
You the best rocco thanks for the info figured out this is exactly why my carb was stalling a bit, too much air not enough fuel!
Happy to help, Thank you for your sub, Any questions just ask. Ride Safe and have a great day Cory.
I appreciate these videos. They have helped me with my Harley Davidson 2003 Sporster.
Happy to help, Any questions just ask. Let us know how this works out. Thank you for watching and your sub. Abel. Ride safe and have a great day.
Love all the willie G accessories on that bike. Thanks for all these great videos
My pleasure! Happy to Help, Any questions just ask. Thank you for your Sub J. Ride Safe and have a great day.
When I removed the plug, I found my screw already adjusted to the "sweet spot" that you recommend, 1 5/8 out. I left it there. I've had no black smoke and my spark plugs were light tan when I changed them with 10K miles on them. The only adjustment I needed to do was replace my stock #42 pilot jet with a #45 one to eliminate the cough on take-off, which I referred to in my comment on your video on replacing jets.
Thank you for your excellent videos!
Happy to read all went well. Thank you for your support Boomer. Ride safe and have a great day.
Thanks to you my first harley build runs like she was meant to🙏
Happy all went well. Any questions just ask. Thank you for watching in all your support Chris. Ride safe and have a great day.
Thank you rocco! You answered my question in your first couple of sentences! I knew i could count on rocco
Happy to help!
Some years old, but what a great video, thx so much for guys like you 👍
Happy to help. Any questions just ask thank you for watching and all your support arctic. Write safe and have a great day.
Always great videos Rocco
Thank you for your support. Happy to help.
Thank you Rocco I did change the oil , filter and air filter and the plugs as well. Took for a good ride the other night since I followed your advice it is running much better I am about a 1/2 of turn away on the air fuel mixture. I pulled the plugs they were whiteish I believe that is a good thing. You should have some t-shirts made I would buy one for the fact of how much money you saved me by your videos not having to ship it to the shop once again thank you and will follow you along and share as much as possible
Happy to help. Glad to hear everything went well. Thank you for watching and your support Kenny. Ride safe and have a great day. And Thank you for your kind words.
Thanks for this Rocco! I think my 04 sporty is running rich. New plugs in and the ends are BLACK after 1 run. Rear cylinder is occasionally doing a little misfire whilst running too. Going to adjust the mixture screw and see how it goes from there. Learning loads from your videos mate, thanks a bunch!
Happy to help, remember it's a most important to have a clean air filter. If you run your hand under your air filter and there's oil on your fingertips there's a good chance you have too much oil in the motor. Check the oil dipstick, halfway full is where these motors run their best. Otherwise they will foul your plugs. Too much oil in the motor. This will result in a dirty air filter and a terrible riding bike. I hope this helps. Thank you for watching and your sub drinkster. Ride safe and have a great day. Let us know how it works out.
@@TwoWheelRocco To confirm, keep your oil level at HALF full on your dipstick? Is this true for big twin evo engines too or just sportsters?
@@TwoWheelRocco I have a '97 Evo engine. What is the best main jet, idle/slow jet should I use for that bike? What about needle jet? thx.
Would the mixture screw keep my 883 sportster from running above 70 mph runs and drives fine but wont get above 70
Thank you for all the videos brother they've been a huge help
Happy to Help. Thank you for watching and your Support Matt. Let us know how this works out. Ride Safe and have a great day.
I like the CV carb, easy to work on and very reliable. Looks like the plastic 90° inlet has been changed, been there and done that...lol
I Agree. Great Carbs.Thank you for your support. Ride Safe and have a great day.
Your the best Rocco. Im struggling with my 03 883. Backfiring thru carb & bike has no balls. I'm hoping this works. Thank you & God bless!
Happy to help. You should start with the Petcock. the screen and the gas the fuel is the gas tank rusty. Take a look at this video.ua-cam.com/video/7Fo9Q93OJXI/v-deo.html. Thank you for watching and your sub. Let us know how it works out. Ride safe and have a great day.
Huge thank you brother! Used to working on carb cars but 1st personally owned bike appreciate you man
Happy to help. Any questions just ask. Thank you for watching and your sub Jordan. Ride safe and have a great day.
I appreciate your video, Its almost identical to my 02 sporty. Got me all straightened out. See you out on the road. Stay safe.
Happy all went well. Thank you for watching all your support Landshapeslick. Ride safe and have a great day.
Great Videos, Sir! I got a 95th Anniversary Sportster XL1200C from 98, US-Import in 2016 and your Videos helped me a lot. Many Thanks and greets from Germany :)
Happy to Help, Any questions just ask. Thank you for your Sub Tom. Ride Safe and have a great day.
@@TwoWheelRocco is this the same way at twin cams with cv carburator? 2003.
Same set up. Hope this helps,
@@TwoWheelRocco So 2 turns out?! Thanks Roco :)
Great place to start. Test for two days then adjust + or - 1/8 turn at a time. Let us know how this works out.
Great information again . Thanks Rocco
You probably dont care but if you guys are bored like me during the covid times you can watch all the latest series on InstaFlixxer. I've been watching with my brother for the last couple of days =)
@Xander Brock definitely, have been watching on InstaFlixxer for years myself =)
Thank you for this video Rocco this helped me tremendously! God Bless you!
Happy to help.Any questions just ask. Thank you for watching and your sub .Havik, , Ride safe and have a great day.
Thanks brother, your videos help out a lot. Btw i'm in Maryland. 99 1200 and a 97 883. Take it easy man.
Happy to Help, Any questions just ask. Thank you for your Sub. Ride Safe and have a great day.
love your accent lol very straight forward teaching
Happy to Help, Any questions just ask. Thank You for your Sub. Let us know how this works out. Ride Safe and have a great day.
Thanks Rocco! Was able to adjust my carb easily and she's running ans sounding much better.
Happy to help. Thank you for watching and all your support Todd. Ride safe and have a great day.
@@TwoWheelRocco Much appreciated! My '02 Dyna was very neglected by the previous owner so it's been an adventure of tuning her up. Definite signs of running too rich for too long. I adjusted the idling screw to bring it to 1k rpm with choke fully pushed in. Then I started the mixture. When I closed that mixture screw all the way off, it was almost 3 full turns. Backed it out to 1.5 and she idled so much smoother. To double check I had it good, I left her running and slowly started closing the mixture screw down until the engine did it's slow stutter then reversed it until full recovery. Was exactly 1/2 turn. Readjusted the idler screw after that. Added a little seafoam to the tank to help clean any junk out and took her for a spin. So much smoother! The more things I take care of on this bike, the better it feels. Ride safe and have a great day too!
@@toddkrempasky5163 Happy to hear all things are going well. just cycle out the bad gas and the funk and she'll ride smooth again like you stated. Ride safe and have a great day and thank you for watching all your support Todd.
Rocco, bought an 05 Twin 88, stock carb, unknown 2 into 1 with baffle, high flow filter. Was set at 3 turns, plugs look pretty good, a bit sluggish at higher rpm, set at two turns, runs much better but plugs turning a bit to the grey side. But runs great! No backfire, nor did it at 3. Think I should go to 2.5 because of plug color? Couldn’t tell you how jetted. But if it runs good and plugs look good, should I just leave it?
One more question. The mixture screw affects the mixture throughout the complete range of throttle, not just idle, doesn’t it? And thank you?
Helps with transition from idle to mid range. but it all adds up in the end. I would leave it at two turns. That tells me the Jets are right size. Hope this helps thank you for your sub Yoso.. Ride safe and have a great day.
Great videos! I have a question, my 05 883 has stock pipes, stock AC & stock jets. The bike had no power, carb was coughing real bad... I shimmed the needle with one thin washer and drilled the slide with 7/64” bit. Bike has a lot more power and runs great, but when I randomly give the throttle a quick blip it falls flat and about stalls out. If I rev it a little slower it’s fine... I’m just trying to get it right. I read that I need to up the pilot from 42 to 45. Let me know your thoughts I’d appreciate it
I would start with your Petcock. Sounds like vacuum line is failing. This will cut off fuel to carburetor. Hose is old and fatigued. Replace and test petcock. Take a look at this video. ua-cam.com/video/7Fo9Q93OJXI/v-deo.html. Let us know how this turns out. Thank you for your Sub Gary. Ride Safe and have a great day.
Two Wheel Rocco Thanks for your reply. I will definitely check it out and give you an update.
THANKS ROCCO I NEEDED TO SEE THIS AND GUESS WHAT, MINE ISN'T BLANKED OFF JUST AS YOU SAID !
Any questions just ask. Thank you for your support.
Good video! Straight to the point!!!
Happy to help. Any questions just ask. Thank you for watching and your Sub Mike. Ride Safe and have a great day.
Wow great video so helpful 💪🏽
Thank you for your support, Ride Safe and have a great day.
awesome thanks rocco ... have a good day .. †
Thank you,
Hey Rocco, always happy to see another video from you.
I took out the baffles on my slip-ons and upgraded to what I was told is a stage 2 equivalent air cleaner on my 97 xl1200, lots of popping on decel and the occasional backfire when taking off or starting it. I bought a couple new jets but all my buddies think I should only have to adjust the screw mixture, what are your thoughts on the matter?
What jets are in there? So now you have no baffle at all you will likely go to a 45 idle jet. 180 main and about 2 turns out on air/gas screw. 3 washer under your needle in your slide. And you will loose the backfiring and popping on decal. That is where I would start. But I am not a big fan of running no baffles. Buy a after market slip on on Ebay $140 you will have a better ride with minimal tuning. A/F 1 3/4 out and done. Let us know how this works out. Thank you for your Sub. Ride Safe and have a great day.
Hey there Rocco! Just did a new choke cable install on my 04 Sportster watching your vid, thanks for the guide! Whilst I had the carb kinda loose I was gonna check the air mixture screw, but the thing won't budge at all. I think maybe the previous owner may have screwed it in as far as it would go and over time it's just stuck. Any advice on getting this loose? Think I'll have to replace the carb? (The bike is running rich. New plugs went black on first run, and it's misfiring, why I wanted to adjust the screw)
ua-cam.com/video/7Fo9Q93OJXI/v-deo.html
Hey how’s it going. When transferring the choke cable to a NEW cv carb (hd-Keihin) Do you remove the slotted brass plug in the new carb to allow the choke cable to install?
ua-cam.com/video/2zdWXoT4KI8/v-deo.html. Hope this helps. Let me know how it works out.
To anyone who is here you must be here because you have a problem. Rocco advice is been spot on for me he is honest and replies quickly I call him the 2 wheel Dr. His attention to detail is priceless so hit that like button
Yes
Thanks for the great video Rocco. What does the bike do if it's out of adjustment? I know you mentioned throttle response and black smoke. Are there any other signs? Currently my bike starts up and idles fine. Throttle response when riding seems good. I do have that gas smell similar to lawn mowers that are running rich, but it sounds good. Also, when adjusting, do you always begin with the clockwise 2 turn adjustment followed by the counterclockwise turn to complete the adjustment? Thanks again!!
I turn it in just so I know How many turns in. And that my starting point from fully closed A/G screw. Every time I adjust so there is know confusion. If your bike pops on deceleration, that's air..So a little more gas will clear that up. I like to know how many turns out I started with. Let us know how it works out. If you know your starting point lets say 1 3/4 out, you can always return it to that 1 3/4 out. Hope this helped.
@@TwoWheelRocco Thanks Rocco, I got it now!! Blessings
@@TwoWheelRoccoUpdate, I adjusted the screw clockwise and it turned 4 1/4 turns before closing (stopping), then I turned it counter clockwise 4 1/2 (maybe a little more). Started the bike and it sounds so much better. idles better and the rich gas smell is gone. I have not rode it yet but already I can tell a difference. I was surprised it turned so much... Thanks again Rocco for your help.
Hey Roco I just put a new carburetor on my bike and it has a 185 jet. The factory recommendation for my bike is a 170. When I'm riding the bike and giving it full throttle it kind of hesitates. I'm wondering if this jet is causing the hesitation or perhaps the air-fuel mixture. So I guess my question is where would I start out at for tuning in terms of how many rotations?
What motor, pipe and intake?
Rocco you are awesome thank you for your help
Happy to help. Any questions just ask. Thank you for watching and all your support Jason. Ride safe and have a great day. You got to love those sportsters.
My 03 883 has 2k miles on it. I replaced all fluids, put on a kn filter and took out the baffles. Now it’s sluggish to accelerate except when full throttle and sounds different and pops a lot especially on down shifting and deceleration. Good place to start? Screw adjust or bigger jets?
You will have to work the Jets. and A/F. When you remove that baffle on the stock pipe you have no back pressure. You should buy slip ons and start with them, Start with 45 idle / 180 main test and tune. let us know how it works out. Thank you for watching and your sub Bryan. Ride Safe and have a great day.
Rocco, I just successfully cleaned the carb and fired up a moth balled 1999 883 , after draining the oil tank which only had 3 cups I changed the filter and added 2 quarts. after running it for five minutes I checked the oil tank which was now full and over flowing. could there have been oil lingering in the crank case?
Yes, it's a dry sump motor and sitting for a period of time oil works its way into the motor and then you see it's low an add a quart and when you start the bike up the oil recycles to the oil tank and you end up at way too much oil. Clean air filter and remove oil. I like to see half way on your oil stick. Happy to hear you got her running. Thank you for your Sub. Ride Safe and have a great day.
I have a 06 1200xl c sportster. Starts great good response but when I push the choke all the way in the bike runs really slowly and can die while idle ing. I fucked with the idle speed screw and that helped do you think I should focus more of my attention on the airfuel mixture screw
I would take a look at your air filter. Clean filter with compressed air. How does she idle with your air filter removed from air box? How long have you been having this problem? Let us know how this works out. Thank you for your Sub Leif. Ride Safe and have a great day.
Awesome Vid. Good Job.
Happy to Help, If you have any questions just ask...Thank you for your Sub. Ride Safe and have a great day.
Rocco, love your channel. Question, If i have the carb in my left hand (still attached to the bike by the linkages), and I'm adjusting the air/gas screw with my right, what do you consider "1 full turn"? Is it going from12 o'clock, to 12 o'clock?
Happy to help. Exactly 12 to 12 would be one full time.. Thank you for watching and your sub.Dan. Ride Safe and Have a great day.
Thank you for your videos. I got a question. The bike runs great at idle, but gen on the road and I give gas, it pops and hesitates to accelerate quick, any toughs? Thank you
Happy to help, I would check your Petcock vacuum, test it and let me know how that works out. ua-cam.com/video/7Fo9Q93OJXI/v-deo.html. What year? How many miles? Sounds like a fuel problem. Thank you for your Sub Juan. Ride Safe and have a great day.
I have a similar issue too sometimes on acceleration, did you fix it?
Hey Rocco, I have a 1980 sportser stock pipe, ss carb, when im idling it wants to die but when I go she wants to go hard? Is my adjustment screw on the top?
I would look up that carburetor on google. Sorry about that. Ride Safe and have a great day.
REALLY GREAT BROTHER!!!! THX!!!!
Happy to Help. Thank you for watching and your sub Dwayne. Let us know how this works out. Ride Safe and have a great day.
My bike is running perfectly it’s a ‘97 1200xlc sportster. I want to change the air filter to the tc bros louvered air filter. Will I need to adjust my carb after switching the filter? Also how do you know where you’re starting your adjustment? Do you turn it all the way clockwise to start and go from there?
Happy to Help. There's a good chance you won't need to adjust anything. If you do turn the air /gas screw out which is counter clockwise no more than two full turns. If so you need a bigger idle jet. Thank you for watching and your sub Dave. Ride safe and have a great day.
Great video. I have an 05 883 custom. Idle is great will run all day. But as soon as I turn the gas to take off it backfires through the carb and stalls or almost stalls out and dies. Thinking the carb may need a good cleaning but I'd like to get you're opinion. Thanks and have a good day
I would check your carburetor excelerator pump diaphragm. Remove air filter cover, Twist throttle and look to see if gas squirts gas into your carb. If it does, then check vacuum lines coming off your petcock. Let me know how this works outua-cam.com/video/7Fo9Q93OJXI/v-deo.html Take a look, hope this helps.
My 2005 883 standard did this until I changed my pilot/idle jet from a 42 to a 45. This change also eliminated the "cough" on take off when the engine was the slightest bit cool, regardless of air temperature.
I changed the pipes to basic drag pipes and put a tc bros ham can type air filter I’ve been messing with the air mixture screw could I get away without rejectting? And if so what size jet would you recommend?
Happy to help. I'd run a 45 Idle 180 Main. Three washers on the slide needle. Let us know how that works out. Thank you for watching and all your support Jeremiah. Ride safe and have a great.https. ://ua-cam.com/video/Cjixbd1ctqY/v-deo.html.https: //ua-cam.com/video/G1XD0hHtwCw/v-deo.html. Hope this helps.
Hey Rocco, my 883 has lost that raw power that harleys have from take off. I can pull out full throttle and it just seems to stall which it doesn't actually stall but the power it used to have is gone. I dont know any other way to describe the problem I'm having. Maybe you can help...
Sounds like fuel flow, Take a look at this video. ua-cam.com/video/kivgNpZWHeY/v-deo.html. If you have any questions just ask. Thank you for your Sub. Let us know how this works out.
You are the best at explaining stuff I swear. I think my bike is running lean I have an 06 Sportster and I changed the carburetor boot and intake seals after I used carb cleaner and it made the idle spike up but it still dies after I start it if I don’t have the choke at least halfway out. I had the carb re jetted at Harley Davidson but same problem. I’m going to replace the vacuum slide next. Anything else I should check?
Happy to help. I would not replace the slide. I think I would clean the pilot jet. I will send a video. They are very easy carburetors on these Harleys. Thank you for watching and your sub. Ride safe and have a great day. Take a look. ua-cam.com/video/Pp4l-zbQcy0/v-deo.html. Let us know how this works out.
Hey man I like your channel, I’m working on a 2004 heritage, I’m ready to try the adjustment you showed in the video, the issue with the bike is it’s hard to start and warm up, once it’s warm it idles ok, but will backfire a lot, and after long ride it will be hard to start, I have to give the throttle full to start? It has new air filter and carb is real clean? Thanks!! I’ll try the adjustment I think that’s all the problem I hope, what ya think?
Happy to help. What jets are you running in this Carburator? Look at this video. ua-cam.com/video/Cjixbd1ctqY/v-deo.html. What pipe and intake are you using? Let us know how this works out. Thank you for watching. And your sub Bobby. Ride safe and have a great day.
Thanks for the video. I just bought a Sportster 1200 and the previous owner put on a performance carburetor and some other parts that make it have a higher idle rpm. Can you use this to lower that and is that safe? Is it possible to lower the fuel amount too much?
Do you know what carburetor is on your bike?
Two Wheel Rocco thanks for the response! It has an Mikuni HSR 42-10 Carburetor. There’s a tube with a screw that extends the piece you were showing to change fuel amount. Not sure where to put the level. He also put on it Screamin’ Eagle Pro XL Performance Cylinder heads, R & I Clutch Plates. The other huge problem I have is that there is virtually no clutch play. Really wish I can slow the bike down. Thanks again for the help!
Let us know how this works out. Thank you for your Sub Jake. I myself use HD parts. Sorry I can't help much with that set up. Ride Safe and have a great day.
Should I screw the mixture bolt completely clockwise to stunt the gas flow and then turn it about one and five eighths counter clockwise (or until desired flow) to open it up? Or should I just start turning counter clockwise from its position now?
Happy to help, turn it clockwise and count your turns. until slightly seated. I like it at 1 3/4 to start my Air/Gas mix then adjust by eighth turn increments. Counterclockwise will written the fuel mix. Any questions just ask. I hope that helped. Thank you for watching and all your support Todd. Ride safe and have a great holiday.
Great videos. I have a 06 twin cam that has no guts at wide open throttle, but when I back off just a bit acceleration is good. Carb has been jetted and I can smell gas at wot. I'm thinking too big of a main jet, or does air fuel screw affect wot? No black smoke and it's only a dog at wot 33 mpg
Happy to help. Did it always run this way? Make sure your air filters is clean with no oil on it. And then check oil level They like halfway on the dip stick when warm up. Do you know the jets you are running? What pipe and air intake? Any questions just ask. Thank you for watching and your sub Maria. Ride safe and have a great day.
Rocco
Are u setting the mixture screw with the choke in or out?
Your bike should be warmed up, Choke off. Thats in, Test for a day after you adjustment. Then readjust. Let us know how this works out. Thank you for your Sub Tony. Ride Safe and have a great day.
I have a '97 dyna from California. Any suggestions on the jetting I should start with for the main, pilot and needle jet? I heard you should get a needle jet from a '88 sportster. If you have a 42 slow/pilot jet go with 45. Main jet 180? OR should I just stick with what I have if it runs good at 2 turns out? thx.
Happy to help. You could always put the 45 in there and see how she runs, I like the 45. But if she runs good, don't bother I don't know what pipe you have what breather. But that video pretty well covers my position 45, 180 and 1 3/4 turns out on the air/fuel. Let us know how it works out. Thank you for watching and your support Alan. Ride safe and have a great day.
Rocco my buddy told me that my sportster is running a bit lean...how could I adjust my carb to make it better....I noticed when I’m riding it sounds like it’s topped out and struggling
Air Fuel Adjustment. Turn that screw out. and that will be richer.
Again a very good video Rocco great tip my wife's bike is running a little rich I may just play with that setting and see if that will work as well thanks again brother 👊👍
It will help and make sure you have a clean air filter. Thank you for your support.
Easy set screw saved my life
Happy to help. I agree that easy set screw is nice. Thank you for watching lawyer support Christian. Any questions just ask. Ride safe and have a great day.
Hey Rocco ... How many turns out for a 1997 stock carb Harley Dyna with a custom exhaust and a Big Sucker air cleaner? I noticed the rear spark plug was sooty but the front plug looked good. But the bike ran fine with no black smoke. I cleaned the plugs and started playing with the air fuel mixture screw. I started at 3 turns out and am now at 1 3/4 turns out, hoping the carbon won't reappear on the rear plug. How do I know where the "sweet spot" is? The bike had a great response at 3, 2.5, 2.0 and 1.75 turns out. do I keep leaning it out until the bike doesn't idle smoothly? Throttle response is good. On occasion, when decelerating I would hear the carb "spit" but not loud and only once. Should I bring the screw out until there is no spitting at all when decelerating?
Happy to help. With the air fuel screw, go out until it runs lousy then start going in until you find the best possible spot and see what that does for you. I like to have a clean rpm when I rev the throttle. Any questions just ask. Thank you for watching and all your support Alan. Ride safe and have a great day.
I have a slight cough on take off had it rejetted but it was before last winter couldn't really drive it as needed you think I need more or less fule?
Happy to help. I will send a video. on putting three washers under the needle to change the fuel curve. This should help your slight cough. Let us know how it works out. Thank you for watching and all your support DB.ua-cam.com/video/G1XD0hHtwCw/v-deo.html. Let us know how it works out.
My 02 sportster started to hesitate while im riding and giving it gas for about a second off and on. I am thinking the carb may need to be cleaned
Sounds like an gas issue. Start with petcock test. ua-cam.com/video/7Fo9Q93OJXI/v-deo.html. . And check vacuum hose that runs from petcock to carburetor that could case the hose to collapse, cutting fuel off temporary. Let us know how that works out. Thank you for your Sub. Ride Safe and have a great day.
hello sir, nice video, I have a 1991 Sportster 1200. I’m stuck on getting the timing down. I replaced the slow jets to a 52. and it still seems like it’s running to lean. do you have any information or could help. thank you
Happy to Help, what main jet? What exhaust? And what intake? Have you tried to adjust your air fuel screw?. Thank you for watching and your sub Kalal. Let us know how this works out. Ride Safe and have a great day
Question - I adjusted mine back to 1 1/2 maybe 3/4 from 2 1/2 on my 2006 Sportster 1200. I am still getting some serious backfiring on deceleration and down shifting. Carbs been cleaned, new choke was installed, new carb seal behind air breather. I did put on Wyatt Gatling slip ons as well. Trying to trouble shoot. Just want to tone down the backfire. Alittle doesn’t bother me.
Happy to help. How does your plugs look. Let us know. Take a look at this video on how to test your Petcock because that's where it all starts....ua-cam.com/video/7Fo9Q93OJXI/v-deo.html. Thank you for watching and your sub Jeremy. Ride safe and have a great day.
Did you figure out your decel pop? Having same issue here as well.
So I just got a 2000 sporster with 1100 miles yes 1100. The bike spits with hesitation when you take off I followed you videos. Cleaned the carb and passages. Still same problem it had the original plug on the air mixture screw and checked the position I found it odd to be a bit over 3 turns out does that seam correct the bike has stock air box but a set of SC slips on any suggestions appreciated
Happy to help. It should be at 1 3/4 to 2 out. Make sure your oil level is halfway on the dipstick. Because the bike sat so long it might have sumprd oil into the dry sump motor. now you could have too much oil in the system. How does your air filter look? If it is dirty with oil and wet clean or replace. Let us know how it works out. Thank you for watching and your sub Kenny. Any questions just ask. Ride safe and have a great day. Congratulations on a Great find.
Had to renew Bungie Bolts on my Dyna 1340cc 1995, but now runs very eratic, e.g. coughts/splutters, jerks when running at a constant speed, but ok when accelerating, also will not keep tickover. What do you think the problem is please.
I would love to help but what is. Tickover? Bungie Bolts?
I stumbled across your video and i was wondering if this applies to an elevation of 6800 ft up to 8000 ft. And back down to an elevation of 5000 ft. The 96 1200 sporster ran excellant at 5 to 7000 ft i now live at 7000 ft. Is a jet up needed to compensate for the lack of air?? Or will the enrichment screw do its job ...and not exceed the 2 turn rule?? Whats your thought
..
Happy to help. I don't think they'll be much of a difference at those altitudes. If there is, Turn out the Air/gas screw by 1/8 and see what that does. Let us know how it works out. Any questions just ask. Thank you for watching and your sub JW. Ride safe and have a great day.
My bike is an 02 883, itll pop at idle sometimes and lower rpms and sometimes stall on an idle but at the higher rpms and mid range it runs beautiful. Could this be a jetting issue or could this be caused by a lean condition?
How many miles? What pipe and air filter?
23k miles screamin eagle slip ons and a shitty hypercharger i want to get rid of.
I dont know if it was mentioned but ensure whatever vehicle you're adjusting a carb on is at normal operating temperature. This is vital.
Happy to help, I agree, tuning your motor at operating temperature is essential. Thank you for your input. Thank you for watching and your sub Justin. Ride Safe and have a great day.
Hey Rocco, I did some all balls racing jet and needle kit on my 04. I’ve now noticed at high rpm my rev limiter is not the same and the bike sputters out at high rpm. I’ve tried a little tuning but what do you think my problem is it still seems to sputter out on rev limiter. Thanks man !
I don't really understand rev limiter, there is no rev limiter on a 04 XL1200 sportster. . That's a carbureted bike. Sounds like your jet is too big on your main and that's why it's sputtering out if it was not big enough, it would just lean out and rev with No Power. If it's sputters, it's too much fuel. What main jet did you put in there? Thank you for watching and all your support high RPM. Ride safe and have a great day. Let us know your jet sizes what pipe and what air intake?
Hi, I have both a Intruder VS1400 and Marauder vz800,,,I have the bikes running well and synced and carbs inspected and set to spec,,,However the idle on both of these bikes is a bit off,,,AND upon bliping or reving the throttle on both bikes the idle hangs for a sec before returning to steady idle,,,from my under standing when this happens its typically a lean condition, conversely when you blip a throttle and it dips, then returns to idle its a rich condition,,,,,,,IS this issue solved by simply finding the correct mixture screw seting on both carbs? IF not do you have any other ideas for me to try? TY you have a great channel
Happy to help. Yes I would turn the air/ gas screw counter clockwise by a quarter turn that should reach in the mix on off Idle. Then see what your throttle response is. you will have to do that on both Carburator's. Let us know how it works ou.t that's where I would start. Thank you for watching and your sub daydreamer. Ride safe have a great day.
I got my mid 70's Sportster from Bay City Michigan and tuned it myself...
One thing about these old sportsters once you have them dialed in it's just about maintenance most people they won't even check tire pressure. I'm glad to hear you have the old sporty. Thank you for watching and all your support Howard. Ride safe and have a great holiday.
A while back I replaced the air gas mix screw with an EZ adjust screw and now I am wondering if the spring inside will stop it from seating? but that sounds right 1 1/2 to 2 full turns I took the crab apart because the idle jet was totally clogged. Anywho going to put in some new Gas tomorrow and fool around with the adjustment. Thanks for Sharing.c];-)
Happy to Help. Any questions just ask. Thank you for your Sub Al. Let us know how this works out. Ride Safe and have a great day.
Hey man thanks for the tips I have a question about cylinders why would one plug look perfect and the rear be fouled thanks
Clean and switch back plug to front. Start and see if your problem could be your plug. How many miles? And Year? Let us know how that works out. Any questions just ask, Thank you for your Sub John. Ride Safe and have a great day.
Valve stem oil seals perhaps ? What's your oil consumption like ?
Do your spark plugs run cleaner now ...???
I Just tryed this on a 90 evo. When i took the carb off the mix screw was backed out like 4 turns so i re set it to 1 and 3/4 and my throttle responce picked up significantly, but i still have a weird backfire at around 3500 rpm. The backfire was why i thought the mix was off. It also pops a bit on decel. I never noticed any smoke from the bike last season. I rode it all summer and just ignored the backfire. Being backed out 4 turns I would figure it should of smoked. Any ideas? Am i just sucking air from somewhere?
Do you know the Jets that you are running in this evo. Thats where I would start. I like 1 3/4 AF.setting. What pipe and what intake?
@@TwoWheelRocco Factory pipe and intake. Ill remove the jets tommorow and let you know. What size should they be?
Thanks Man!
Happy to help. Any questions just ask. Thank you for watching and all your support Paul. Ride safe and have a great day.
Very informative, my buddy sold me his 03 sportster. It won’t fire up, turns over. Sounds like it wants to fire. Spark plug is reading rich.
First I would checked the Petcock, I will send you a video on how to. ua-cam.com/video/7Fo9Q93OJXI/v-deo.html. Is there any gas leaking from the carburetor onto the floor through that small black hose at the bottom of your float bowl. Any questions just ask. Thank you for watching and your sub Luke. Let us know how it works out. Ride safe and have a great day.
@@TwoWheelRocco what should I do if I am leaking from that little black hose?
@@jacobjackson3791 Great question. Take a look at this video. ua-cam.com/video/tS_-M4RuWc4/v-deo.html. It will help resolve your problem you have a bad float needle jet. Try to clean it once if that doesn't work buy a new float needle jet and your problem is solved. Let us know how it works out.
Hey rocco love your Channel. It’s helped me a lot so far with my 06 1200. I have an issue with it after getting some work done. Im having a mid range miss/burp/stumble while out cruising. Idle and wot are fine, but at cruising speeds there’s some stumbling going on. I just had a new battery, new petcock and vacuum line, new plugs, new voltage regulator and accelerator pump in the carb. I’ve tried adjusting the mixture screw but it doesn’t seem to be helping . Any ideas?
Happy to help I will send a video on putting washers under your slide needle. This will help with the mid range stumble. Thank you for watching and your sub blaze. Ride safe and have a great day. .ua-cam.com/video/G1XD0hHtwCw/v-deo.html. Let us know how it works out.
@@TwoWheelRocco this helped a lot. The bike runs so much better. Thank you for the help Rocco
Happy to hear all is well. Thank you for all your support blaze. Ride safe and have a great day.
Adding to that mine is fine on tick over but once riding Spluttering - Popping now and again on low to medium revs on acceleration is that still carburettor ? Plugs look fine a have recently been replaced … I have 99 evo
I would try to put some washers under the needle I'll send you that video.ua-cam.com/video/G1XD0hHtwCw/v-deo.html. Let us know how this worked out.
Is this best done with a warm engine/no choke?
Happy to Help, This is Done on a fully warmed up motorcycle with choke off. Thank you for watching and you sub Jorge. Let us know how this works out. Ride Safe and have a great day.
thank you for all the videos sir. is this how you fix if smoke coming out from the exhaust? cause i just rejet my carb put 48 on after i put a alenenes big sucker air cleaner and new bassani exhaust
I do not understand exactly what you mean by smoke coming out the exhaust. Thank you for watching. With the set up you're working with its test and tune 48 Idle at 185 Main and three washes on the needle and let us know how that works out.. I hope that helps bro. Let us know how that works out.
@@TwoWheelRocco i got black smoke coming out from my exhaust after i put big sucker stage 1 air cleaner on my 06 Sportster 1200XLR. so i did a re-jet went up from 45 to 48 jet. it runs good and no spit but black smoke is coming out from the pipes. so does it mean it need more gas and air? do i go counter clockwise or clockwise?
@@embobski0323 clockwise minuses fuel. counterclockwise adds fuel. Find out how many turns you are out on your air fuel screw and let me know. I like 1 3/4 out
@@TwoWheelRocco ok sir i will do that! thank you again for all the videos really helps us a lot learned about fixing our own bikes and especially saved us time and money.
@@embobski0323 Happy to Help, Thank you for watching and your Sub James. Let us know how that works out. Ride Safe and have a great day.
I have a 2005 1200R sportster with a vance and hines upswept 2 into 1 stainless system. Very pricey and supposedly high performance although their graphs don't impress. The bike is now triked out and I am going to put the vance and hines 2 into 2 short shots on the bike. It runs great now with the 2 into 1 system. I am guessing I am going to have more air moving through the system. Any thoughts on the type of adjustments I might have to make? Thank you in advance!
Happy to help. Do you know what jets you're running as in the main and the Idle. You might get away with just adjusting the air fuel screw. I would install the new exhaust and see what you got. Let us know how she runs. Thank you for watching, and all your support Paul. Ride safe and have a great day.
thanks Rocco The bike has 2000 original miles and the pipes are only about 1000 miles old. The previous owner said he changed nothing from stock, just the pipes. I'll get back to you in a couple of weeks when I swap the pipes. Thanks!@@TwoWheelRocco
Take a look at this video just for a little review. .ua-cam.com/video/Cjixbd1ctqY/v-deo.htmlsi=uzNPWvTQ2Y4uW375
What would be a situation where you want to change the factory setting? Why would the idle need more fuel?
When you change air flow. That would be an after market exhaust and HP intake or air cleaner. This is what will affect your factory setting. Any questions just ask, Thank you for your Sub Markus. Ride Safe and have a great day.
How do you count the turns? Do you screw it all the way in then count back? Or screw out then count in? Trying figure this out
Happy to help. Go all the way in and count out. Thank you for watching and your sub Gashan72. Ride safe and have a great day
Hey Rocco,
First I want to say thanks for all your knowledge. I have a 2004 Harley Sportster 1200. My issue it that it smells like a lot of gas when it’s on.
Happy to help. They are notorious for the fuel inlet on your Carburator get a hairline crack before it totally fail. I will send you a video on how to replace it or inspected. If there's a black vinyl cover. take a look at this video. ua-cam.com/video/4MzTt2IfGvY/v-deo.html. Thank you for watching and your sub PSA. Any questions just ask. Let us know how it works out. Ride safe and have a great day.
@@TwoWheelRocco thanks
Does the screw bottom out? Then you back it off 1 and 3/4?
Yes it does bottom out then bake it out. That is correct. Thank you for your support.
Rocco, my sporty is an 883 1200 conversion with Kuryakin filtered velocity air cleaner and mild baffled exhausts. I have the mixture turned out 2.25 and she runs ok, would you suggest turning that .25 back to lean it off slightly?. Thanks.
I like to be between 1 1/2 2. turns out the most. If you need to be over 2 turns out you should higher your Starter jet. What jets are you running?
@@TwoWheelRocco I didnt check when I stripped it down, assumed the guys who did upgrade would have done jets too.
You never Know. It is important.. Take a look and let us know what you think. ua-cam.com/video/G1XD0hHtwCw/v-deo.html. Any questions just ask. Thank you for your Sub Simon. Ride Safe and have a great day.
@@TwoWheelRocco You were right Rocco 1 3/4 turns out and she runs great. Thanks man.
Happy to hear all went well. Any questions just ask. Ride Safe and have a great day.
My son had bought his Sportster several months ago. Been having plugs foul out and not running smooth except at high rpm. Watched your video and went to check the mixture screw and it was set at three and a half turns. I reset it at two turns to start with. I'll keep an eye on the plugs regularly to see how they are doing. Thanks for the info.
Happy to help. Any questions just ask. What air filter and Exhaust are you running? Thank you for watching and your sub freebird. Ride safe and have a great day.
@@TwoWheelRocco Screaming Eagle filter. Just cleaned it a week ago. We used K&N filter recharge kit. Open exhaust to just in front of the back tire.
@@4freebird69 run the filter without the oil it makes a difference. check the oil level on your dipstick, make sure it's no more than half on the dipstick. Let me know how that works out.
How do you count the turns? Do you screw it all the way in then count back? Or screw out then count in? Trying figure this out.
@@gashan72 turn it in all the way then back out.
I’m hoping this works. Do I need to put the fuel filter straw in also ?
Yes,. Your screen is important. replace it. that's where it all starts in the gas tank.
I have a 04, 883 put a new chineseum carb on it and it wouldn't hardly start. That screw was turned way out like 4 turns or so is that normal? When it did start as soon as I touched the throttle it died. Set it to approximately where you did and it starts but I had to idle it up to stop the popping. The original carb popped too, I replaced it because it was leaking fuel bad, actually caught fire today so that's why I put the China one on.
Happy to help Chinese Carburator never had luck with. You should've just rebuilt your CV Harley Davison Carburator you would've been much better off. if it was leaking gas through the quarter inch hose at the bottom that was just a float needle jet. I will send you the video on how to rebuild the Harley Davidson carb.. Thank you for watching all your support. Return it, Ride safe and have a great day. Any questions just ask. ua-cam.com/video/tS_-M4RuWc4/v-deo.htmlsi=bQFfTQ9I5-ydReSZ, the first thing you should check is your Petcock Diaphragm if the diaphragm is bad, you'll never get nothing running right you started at the end of the stream. You really need to start at the Petcock and work your way to your Carburator. I will send a video on how to test your Petcock. ua-cam.com/video/7Fo9Q93OJXI/v-deo.htmlsi=OvoVn9s37wJXKLRi. Let us know how it works out.