How to adjust idle on 2 stroke dirt bike - air screw adjustment 2 stroke.
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- เผยแพร่เมื่อ 15 ต.ค. 2024
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In this video I explain how to adjust idle on 2 stroke dirt bikes using mainly air screw adjustment. Hope this will help you to set your idle on your 2 stroke dirt bike. take care!
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2 stroke dirt bike idle adjustment
air screw adjustment 2 stroke dirt bike
This vid should be a reference point for everyone tuning a 2 stroke. Simplifies it all.
People like you are why everybody loves the biking community simple explanations and best accurate tips that actually help
I appreciate that! Glad you found the video helpful, thanks Joey
Best tutorial I've found so far. Thanks man!
Cool Kyle, glad it helps! Thanks
Ya he explains his vids well
Facts
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@@dirtniron Hello,
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Dude I'm seriously surprised you're videos don't have more views they're super informative , I just picked up an 03 KX100 and your videos REALLY help man!
thanks Lazaro, glad the videos are helping! good luck with your green ripper! ;)
New subscription here. I hope you keep up the content too
This video on two strokes taught me more about tuning a 4 stroke than 7 other videos I watched on 4 strokes before this. Thanks you for differentiating the different types of screws and being specific instead of just throwing the same term around over and over
thanks, glad it helps!
@@dirtniron i have one issue with same carb, runs fine, revs good, but stay to high at idle or die. cant find that low rpm idle like yours. also sometime I adjust it and is fine, than in the middle of ride again goes to high or die. I always keep a little play on the throttle. (edit: 1 size bigger pilot jet was needed. First I raised one clip the needle, then it run very bad but the idle was great, so I put the needle back and switch the pilot jet to one size up and runs and idle perfect now) Thanks for video.
This is a nice, basic explanation of how throttle stop idle screw works and the idle air/pilot air screw relates to it. Thank God this guy did this
thanks Justin, glad you find it helpful
I must admit I adjusted the idle on my Yamaha yz125 by the cable, I did know it was not right to do it that way but I was too frightened to mess around with the screws on the carb in case I messed it up and couldn't put it right but after watching this video I'm no longer frightened and am going to do it the correct way tomorrow. Thank you for explaining it in a simple understandable way.
cool Mark, glad you found it helpful. Good luck tomorrow!
I’m guilty also
A truly solid foundation for new 2 stroke owners. THANK YOU!!
Glad to help!
Great video. I battled with idle on a 2021 kx85 for 2 weeks. This video helped. I turned in both idle and air screw and started the bike and continued to turn down the idle until the bike quit. Started again and turn ed air screw out until there was excellent throttle response.
glad to hear that the video was helpful. have fun Jeff!
So easy to understand, never played around with carbys but this has helped so much with such a little adjustment. Thank you
Glad it was helpful!
Thank you for your input. My son's bike was running like crap. I got it running a little better but after watching your video I was able to get it running great. Thank you again
You are welcome Chad, I am glad it helps! 👍 have fun with your son!
Great information Rado. Wish I knew this 10 years ago, I adjusted my idle on 2006 Cr250 the wrong way! Had a flashback watching this video! Enjoying your vids.👍
Thanks man ;)
Very good information about this. I believe that the biggest problem is people will do this only when they have to. Not very often so it's forgetting how to. But then again, they don't have to with videos like this one. Thanks for sharing this
I remember just 3 years ago when I got my first bike and watched your video and not knowing anything and now I repair bikes for people I know and friends
Thank You, I put a new carb on a 71, CT175 Yamaha that hasn't run in years.. (Haven't owned a 2 stroke in 30 years) Helped me out alot!
Glad it helped
I watched all kinds of confusing videos on this you are the only one that I learned something from and got my ATV back on the road Thanks.
Glad it helped, thanks!
Best channel ever about pitbikes
Best tuning explanation I’ve heard to date. Well done!
thanks, glad it helps!
ABSOLUTELY BEST TUTORIAL YET FOR A NEWBY LIKE ME !!! THANK YOU FOR YOUR TIME AND THOUGHT INTO YOUR VIDEOS!!!
Glad it was helpful!
Quite a library of useful information you've put together. This video was EXACTLY what I was looking for. In your "I was wrong about the YZ125x," I mentioned that I was on the verge of getting my son a 2-stroke 85. When I bought it the bike would not idle. I felt confident that it was something simple, because it would start first kick (as long as you gave it a little throttle when kicking it over), but it would not idle. I didn't have a screw driver, so I tried with my fingers, but it was too tight. I bought it anyway. When I got it home, I set air screw out to the "starting point" of 1.5 turns out, and with adjustment of the idle screw, I achieved a pretty good idle. The only minor issue I have is that once it's idling nice and low, it kinda bogs a little when you blip the throttle. Once it revs, and you let go and re-blip the throttle it's pretty much perfect. But when you let it do the nice low idle again, and blip the throttle, you once again get that initial bog. This video has made me hopeful that if I play with the air screw, I might be able to get rid of the initial bog off of idle. Thanks.
glad you hear that, appreciate it! you should be able to get rid of the bog, she might need little bit more fuel.. I bet your boy is ripping that 85 ;) good job dad!!
@@dirtniron My son started with a PW50, moved to a KLX110, and then a CRF125F. The KX85 is his first serious bike, so he officially entered the big time. :-) I'm already planning his next ride. If he clicks with the 2-stroke, his next bike will be a KX100. If he doesn't click with the 2-stroke, his next bike will be a CRF150R.
I really like the way you covered throttle free play!!
Thank you so much. I just got a 2022 ktm 150, and I’m getting back into riding. I knew right away the throttle response was off, but I couldn’t tell if it was fuel mix, jetting, etc. this helped!
On ur bike did this make the bike run better when riding it or was it just effective at idle
Excellent, I have just bought myself ktm 200 and it's bogging a little in low revs so gonna have a play tomorrow before I take her out. Subscribed
Very helpful thank you! One question, do you wanna have the bike at operating temperature before adjusting the carburetor? Sorry if thats a dumb question.
thanks man so much,i bought a 95 cr250 and ti will idle so low it would die some times when completely hot,so i adjusted the throttle so it opens the slide,what happed was it idles without dying but when warm without load it would climb to insane rpm level,so even thought it idled it would rev to like 5000 rps without load.i worked with 4 strokes up until i bought this cr250 and this vid helps a lot.
cool man, glad it helps!
Brooo! Thank you so much! I’ve got a 2021 YZ250. I took out out for my first ride and it wouldn’t hold idle. I have this same carb on the bike. I turned in the idle screw until it would stay running. It takes 4 to 8 kicks to get started and I’ve been fouling plugs like crazy. I had no idea that there was also an air screw. You’ve saved me a lot of heartache here. Thanks again, awesome video!
cool Skyler! glad to hear that. Enjoy your bike 👍
Depending on your elevation and temperature your jetting could be off.
I live basically at sea level and it was still jetted too rich. I had to change the pilot and main jet and adjust the needle.
At sea level the air is denser and you need more fuel (more rich) so it seems like factory jetting is almost too rich for anyone.
Fouling plugs can be too rich or just not being fast enough to keep the engine cleaned out.
Thanks for sharing, always a good thing to have more knowledge about our bikes. Usually when I tune my carb I turn the air screw all the way to the right make the gas richer, make the bike idle in 2-3 rpm and then I turn the air screw slowly to the left make it leaner until the engine idle at its highest rpm it could reach. When the idle rpm is not taking any higher when you turn the air screw counter clockwise thats when I know it's the right setting. Usually it takes 1.5-3 turns to the left to reach, more than that then I'd change the pilot jet size. After I get the air setting then I'll adjust the idle screw.
Most helpful video I've found yet. definite thumbs up, thank you very much! got my first ever 2 stroke today (04 CR250) had this exact issue with the idle due to change in elevation and before I saw this vid I couldn't figure out what was going on with the carb. I had people literally try to tell me my bike had a bad crank seal lol.
Awesome me too 93 cr250 don't idle he said so this video super helped
This video saved me time & money! I took my dirt bike to dealer to get inspected & after watching this I was able to do it myself
cool man! glad to hear that
This has been already said, but this is the best 2 stroke jetting and idle video yet!
Thanks a lot Todd, glad the video is helping!
Best explanation I've seen. Thank you. Explained and illustrated.
Glad it was helpful!
You are good men! Gretings from Poland!
thanks brother :)
Honestly, I find that tuning purely by ear will often lead to being in the ballpark, but not quite.
I always like to run a tachometer - even a 5€ one will do - and zero out my settings.
I will then pull out the air screw two and a half turns and three or four on the idle screw. That will usually get any bike going on a lumpy idle.
Next I tune down - or up- the idle screw until I get something consistent at, lets say, 1500rpm and only then I start playing with the air screw.
Screw it in a quarter turn and see what happens. If the idle goes up, then I'm in the right path.
If the idle goes up, then I bring the idle screw out until I get a steady 1500rpm again. Wait a few seconds and give the air screw another quarter turn.
If the idle goes down, then take the air screw in the opposite direction. Do not adjust the idle screw to compensate a low idle after a tweak on the air screw.
Repeat until the best possible idle is achieved.
From there, I will always screw out the air screw an 1/8 turn, just to keep things on the rich side and add some response.
And that's about it. The over 3 turns, under 0.5 still apply, but this way you can be analytical in the process if you're just starting out and visualize the results of what you're doing.
On four strokes I pretty much do the exact same thing.
Tuning an idle on multiple cylinder carbs. Now that's a bit of a pickle :D
Thanks for sharing Andre!
on multi carbs you get a vacum gauge and just set them up the same . i do it at work its easy
this one helped me so bad!! thanks
I've just come across this comment and was going to try it but just picked something up I thought I'd query.
2/3 of the way down you say ..... "From there, I will always screw out the air screw an 1/8 turn, just to keep things on the rich side" .... do you mean turn IN on a 2 stroke to make it richer, I believe turning out makes it leaner???
Also ... you set the idle screw so it's approx 1500 and then adjust the air screw, then adjust idle back to 1500 again and keep repeating until you get it right. As an alternative, from the 1500 rpm, couldn't you just adjust the air screw until you get the highest reading and turning it in either direction causing the rpm to drop, then give the 1/8th turn (in the correct direction :-) ) and only then adjust the idle screw to bring it down to the desired rpm?
Sorry …. Not meaning to pick holes in your comment but this is all new to me and just trying to make sure I get it right rather than doing something to damage the bike.
@@nevilleprice8797 you got me on the 1/8th turn. On two strokes (can also happen on some 4 strokes depending on the carburetor) turning out the air screw will make it leaner, not richer. Rule of thumb, it the screw is close to the intake, then it's an air screw. If it's close to the engine, then it's a fuel screw.
"As an alternative, from the 1500 rpm, couldn't you just adjust the air screw until you get the highest reading and turning it in either direction causing the rpm to drop, then give the 1/8th turn (in the correct direction :-) ) and only then adjust the idle screw to bring it down to the desired rpm?"
Not really. Usually at a fast idle resonance comes into play and things can get whacky.
Straight and to the point. Great explanation, my bike boged a bit and wouldn't idle on its own.now after tuning my bike like he did it runs great now.
cool man, glad it helps!
thank you! This video was super helpful. You helped me get my 1976 YZ80 running, it was jetted way off after getting a replacement eBay carb for it. now it idles great!
Glad I could help
Thank you so much for this tip. Big fan of your channel and your work with Jay Clark!
If I want to start from scratch, I would put the air screw 2 turns out as you said, but how many turns out should the idle adjustment screw be?
Came here for the same thing. Need a starting point for the idle screw
Thank you, just rebuilt my sons kx 85, and you have helped me 100%! Much appreciated!
thats great Kevin, glad you hear that! have fun with your boy!
Very good tutorial! Please tell me if for this tuning you have to have The engine cold or hot. Thank you!
Best tutorial bro. I was doing some research and I know that’s not something very complicated, but u make it so easy to understand ❤️🙏🏻 I got I very nice 2002 ktm 125sx 2 stroke. I be honest that bike is very in mint condition I know I just have to work with this things. The engine only have a fresh 27hr, a tons of new parts. But it bogging in lows rpm like 1/4 throttle before the powerband and torque. I don’t know if is something with the air or fuel. I put v force 3 reed cause I like trails so I just want some smoothest throttle and more power at the acceleration. I know maybe with the v force 3 it don’t gonna run very fast cause it make the bike more like low and mid range, but my bike top speed are just like 47mph. I think I should do a lil tune wt the air-fuel screw to see if it grab a little more power and stop bogging at lows rpm cause the bike have a nice powerband but that little bogging or si leak give me anxietys.
Best carb tuning vid yet ! Thanks for making it simple to understand
thanks, glad it is helpful
Used this video and got my 250sx to idle perfect today. So excited! Thanks for the videos Rado. 👍🏻
That's great I am glad it helps. thanks for sharing bro!
Thanks rado. As usual a very useful and inofrmative video. My beta 250 came with the float level set too high. It was leaking gas from the overflow a lot! Other than that, it seemed to run fine. Once I adjusted the float height lower, the leaking gas went away but now it has a slight bog only when giving it sudden and lots of throttle off idle. Everywhere else, it runs very crisp. I am going to play with the air screw now to see if that fixes it.
yea, I think you should be able to adjust it with air screw, in not I thing go one size bigger on the pilot.good luck!
Hey, love the videos. You have very informative videos that are straight to the point. I have an interesting case that I am hoping you can help me with. I recently picked up a 1998 Honda CR250R 2 stroke. I live at 4000ft elevation, and the bike was bought from someone who lived at sea level. The bike runs absolutely great when started, huge amounts of power and immediate throttle response. I would just like to know how to tune the carb per elevation. I did what you did in this video with the 2 turns out, and adjusted the idle, and it seemed to run pretty good, but had trouble starting cold on the next start after. Wondering if its too lean? What I really would love is to figure out a good air/idle screw combo that can run good at my house, but also run good at sea level. Also I am running 32:1 with Motul racing oil.
Prior owner was running 44:1 with around a 3/4 turn out on the air screw. From what I have been told though, you should not adjust your fuel/oil ratio...the manufacturer puts it there for a reason. If you are running too rich or too lean, you need to change jets.
Any help on this subject would be very much appreciated! This is my first 2T, and god damn its a powerhouse. Just want to really get it restored and running as best it can!
Great video and thank you for the clear explanation. My old DT175 had idle issues and I am at 1/2 turn out to get it to run close to correct. Could not figure out if I needed to go bigger or smaller on the idle jet. Your video explained it well and I used my jet drill set to open it up just a bit and not I'm 2 turns out and it runs perfect!
Cool, glad the video was helpful! Have fun Roland 👍
Awesome finally someone showing the top screw adjustment.
Best video for air screw/idle tuning 👌
I've been riding bikes for years, as well as watching you tube for years and quite honestly this video if by far one of the best I have seen for adjusting pilot jets!!! I wish you all the best with your channel and the great straight to the point here is how its done attitude! Awesome!
thanks a lot, I am glad the video is helping. you just made my day! ;)
6 years later, still helped me out!
Where do u start with the black idle screw that’s where I’m lost lol
Hey thanks for the video. I’m about to install a jd jet kit in my 200 exc. first carbed bike. Where do I start with the black idle screw?
Iv used this a few times now brilliant informative video, thankyou fella my bike is sounding so crisp.
Glad it helped!
really good explenation but my bike has the problem that when its cold it idles but when it gets warmer i have to adjust the idle what coud that be?
Best video ive found on this topic. Mine was way off, the bike wouldnt idle and bogged. Idles and rides sweet now!!
Glad it helped, thanks!
Thanks a million! this video helped me out a lot, i just bought a KTM Exc 125 if i'm not mistaken it is the same as the one you used on the video, but in any case my idle was too low and always have to pull the choke when i'm not riding or keep my hand on the throttle so this video helped me out a lot i quickly set my screws and now it idles like a dream! thanks DirtnIron keep up the good work!!
cool Daniel, glad I could help! Enjoy your ktm ;)
Daniel 😂😂
Thanks man ! Do you have video of how to take the slack out the throttle mine has little bit to much play 2004 CR85r
you have 2 places where you can adjust it, on the carb when the cable comes in and on the throttle at the handlebars
This is fantastic! No bullshit. Good video and audio quality. Close up shots. Thank you man
thanks, glad it helps
Absolutely the BEST and easiest to follow tutorial on this subject. Super glad you made this video my dude, subbed.
Awesome, thank you!
Hey buddy Does the bike needs to be cold or warm to adjust the screws ? TIA
Great!, would your method work on a Mikuni as well?? Thanks!
Had re-jet for warmer weather and used your video to set idle.. thank you I'm running crisp for my Hatfield McCoy riding !!
glad it helps, thanks for sharing!
Thank you so much, i was going crazy trying to adjust that screw on a 2 stroke, i was doing it the wrong way !!!!!!. Thanks for taking your time to explain the diference between that screw on a 2 stroke and a 4 stroke.
cool Ron, glad it helps!
Thanks for explaining how to actually adjust carburetors instead of going into a 35 minute video explaining how to build one from scratch if ever everyone on the entire planet dies out.
Bloody fantastic vid bro👍. I think i know why mines been bogging coz of me havn air screw all the way in and i have the same carby on my 2000 Suzuki Rm 250. It has that choke adjustor too. where should i have the choke adjuster turned to for these tuning proceedures?
Excellent instructional video!! Thanks man!!
Awesome video thank you! Do you have a video on adjusting the power valving on a 125, 2 stroke dirt bike?
Thanks video! Your advice worked perfectly with the general start point on tuning the bike, i kicked it once and it came on idled perfectly! 👍👍👍 Thanks
Glad it helped
Great info. I can get my idle set well before I hit the track or in the garage, but after say 30 min of riding it’s lost again and the bike won’t idle. I think it’s a sign of needing a top end rebuild, do you agree?
I am not sure, but having new top end is always a good thing ;)
Very helpful man people like you are awesome
Thanks for this tutorial. Im going to try it with my Kawasaki Leo Star.
hey great vid but i'd just add one thing. is it not wise to wind out the idle screw fully (not push up the carb cylinder) before adjusting the idle screw?
yea makes sense
Informative,I have one doubt, can tuning decrease the amount of vibrations in the engine ?
Recently after a small service of my yamaha rx 135cc I notice a little bit more vibrations both during idle and higher rpm.
My 1997 rm250 will not start by kicking it but it will if you bump start it but once you shut it off still have to bump start it any information is great thanks in advance
Still thanking you for this tutorial 🙏🏼 🙌🏼
Glad I could help!
I refer back to this all the time. Simple, effective.
Glad it helps 👍 thanks Mike
Thank you for this! I have to borrow my Wife's ear to make sure that it sounds like my 2 stoke. Why I had to borrow my wife's ear? It's because I am deaf. She was telling me about the thumping sounds. So this video cleared it. Sames just the same as yours but needs some slight adjustment for lean or richer.
Glad to help! good luck Arron!
@@dirtniron Thanks man! first time out riding it today and my spark plug got fouled. (I think) I hope so! lol I already cleaned out the carb and change jet, before I went out riding it. I rode it for only 3 hours or so.
@@dirtniron Hey Man,
Please forgive my grammar,
After 3 hours of riding, my bike died Fouled Spark Plug. Seems to be too rich. So, I can Turn it more to the left and then I can Adjust the throttle? if i did that, and it will be ok? As of right now when turn all the way to the right (less air) i only have it turn 1/4 not 1/2.
@@GibbonsWorks how do you change gears, by the feel of the vibrations?
Alot of people say you need to be within 1.5 to 2.5 turns (left) on the air screw ortherwise you need to change the PJ. The manual for 300exc Australia has 3.5 turns as it's standard spec.
@@brendon8702 Yeah by the vibration of high or low rpm. I have turned it to 1 full turn and 3/4. So, I hope that'll do it. I'll keep an eye on my spark plug to see if its either lean or rich.
hey man. i was wondering how many turns do you put the idle screw in when you start adjusting the air screw? thankss
i start around 3-4
@@dirtniron 4 turns from fully inwards?
*i have a question, my dirt bike has the same problem as well, which I’ve watched the video. Now that’s that out of the way, my Yz85 turns on and run but cut off at a complete stop. Do you know the issue? Pls respond*
raise the idle I guess
Dirt N Iron *I figured it out. Thanks a lot tho*
Question: does it matter where the idle screw is set at, before you start adjusting the air mixture screw? Thanks in advance
I would keep it somewhere in the middle, usually i dont touch it much. Maybe bring out a turn from where it is right now...
Perfect video thankyou very much my bike would not idle and this idea perfectly explained which screw in which direction does what and roughly where to set them bike idles perfectly now
cool Tom, glad it helps!
i got this kmx 125 that backfires on high rpm only, idles great. any tips?
I recently picked up a JR80. Once its hot and I come to a stop and press the clutch in (or even in neutral when hot) it starts to scream rpms go off the roof as if the engine is about to blow off. But as soon as I put in gear and go it runs. Is this an idle adjustment and fuel mixture issue or something else?
Just restored a kdx 200 thanks for the tip i wonder how much the temp out side plays a role
cool Cody, glad it helps! KDX200 are so sweet!
Hi. Great helpful video😆
Which is best setting for idle screw to start with ? Thankyou 👍
not quite sure, lets say 2-3 turns out
Hi, my spark plug has a bit of oil on it, I know it means it runs rich. Can I lean it out with the air screw while idling or should I ride it and then check the plug? It’s a 1981 RM100. Thanks in advance.
you can lean it out, but thats just your idle and little off idle.. try to maybe play with the needle
Very helpful for this newbie! Thank you.
Does this increase the power of the bike?
Best video on the internet thanks brother really helpful info.
Glad it was helpful! thanks bro!
How do you adjust the fuel mixture and oil mixture on a 2 stroke? No I don't mean in the gas. I mean a good bike with oil injection. How do you know it's pulling to much or too little because the cable adjusts.
The bike before ran great before idled good and all that. Took 3 months off now and weather cooled down by like 30 degrees average. Now it's not wanting to idle on its own, off idle to about mid throttle its bogging then when it hits mid range to upper rpm it does great and pulls hard. Is the pilot jet to small now causing it to run leaner since its cooler? If I have the idle screw all the way in it barely idles on its own but it'll want to die after a minute or so idling on its own. Free play at the throttle is good and backing the screw out seemed to help a bit with throttle response but not really the idle.
yes, you need more fuel. Try to go one size bigger on the pilot, or maybe first raise the needle one notch and see if that helps
Would you know why when the fuel valve from the tank is in the off position why it runs better? Tried changing jets up and down. Went from a 42 to 40 on the pilot and seemed to somewhat idle but still not right so I turned the fuel off and let it idle some of the fuel from the bowl so I didnt make a mess and it sounded super healthy and revved without hesitation
I have a bad exhaust leak could that be part if the reason I can't idle. The exhaust system is going to all be replaced eventually needless to say it's vibrated loose from the frame. Also low end doesn't have much power but once rpms are up she rips
Well that's a great help sir,ive a rd thats not quite right on the left this should help thanks
cool, glad it helps Gavin!
Are you listening to your exhaust or the motor?
Thanks for another great video mate, greetings from Australia.
thanks Tony! greetings to Australia ;)
Thank you brother couldn’t figure thing cr85r out thank you
Hey I have the same bike is the choke setting have something to do with your idle I can only idle once I warm up
This video was super useful, thanks Bro !
Okay
2018 YZ250 ts
Air screw 3 turns out to get that crisp throttle
But idle screw is almost all the way in to get that soft idle like you had.
I’m using aviation fuel 100 octane at 32:1 mixture
Should I do some jetting
Bike is completey stock
if you are happy with the throttle response then I would leave it like that, there are good YZ250 jetting recommendations on pro circuit website, check that out maybe. good luck!
Hey man you said that you should go 2-2,5 turns out on the airscrew from fully seated to begin with. Your bike didn't idle at the beginning and you fixed it with the airscrew? why? why not just fix it with the idle screw? How do i know what to set my idle screw at to begin with? Let's say my bike starts and doesn't idle at 2,5 turns out on the airscrew why don't i just bring the idle screw little bit more in so it idles at 2,5 turn out instead of going to 3 turns out as you did? keep up the good work man!
bc I wanted to have the bike also running well, have that crisp response from idle to mid. I first set the idle with air screw to get nice crisp response and then if needed I can adjust idle screw as well.. hope that makes sense
@@dirtniron So i first make sure the bike starts and then adjust the airscrew for best throttle response and only then after the bike is crisp i adjust idle screw for smooth idle?
Thanks man , after watching your video I've fixed my bike , I came home for a short vacation , no time for mechanics , I had to make a temporary insurance and i'm glad that the bike is now running otherwise I would have lost the money of the insurance... anyway thanks again :D you have a new subscriber :D
Cool man, glad it helps. Welcome on board!
Hi bro your video help me a lot. I got a question. Im totally New on a 2 stroke and i recently buy 2 Yamaha yz 125 one is 2002 & 2005
The 2005 was working fine but now i move the air screw 2.5 turn open but i feel its rich. I feel the 1 and 2 Gear like heavy. The 3rd gear its more soft. Now i cant end the trail because i spend all the fuel.
I Need to close the fuel screw? The air screw it has 2.5 open its fine?
Im using 4oz per gallón. And the spark plug its the original. The carb its clean. Im sure just i Need to adjust the carb
i am not sure i understand you. this carb does not have a fuel screw..