Quick Carb Adjustment Question
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Intermediate
Joined: Sep 2011
Posts: 33
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From: Halifax, Nova Scotia
Quick Carb Adjustment Question
Over the weekend, I managed to switch out the slow jet on my carb with a .42 jet, after realizing that a .44 was too much. I did it to try to aleiviate the hesitation/carb 'pops' when I take off. (only mod related is a K&N air filter filter and kit; it was 'popping even before the mod).
I also put in the EZ Adjustment screw. That was a good move in hindsight!
Question, 'cause I just want to confirm it: When tuning the carb when warm, you turn it in until it stumbles, then 1/8 turn it out to start? I ask because I can't make it stumble, which is making me slightly nervous. I am getting some 'pops' in mid-range now, but nothing at the 'starting off' end.
Turn Out = richer?
Turn In = leaner?
Right?
I also put in the EZ Adjustment screw. That was a good move in hindsight!
Question, 'cause I just want to confirm it: When tuning the carb when warm, you turn it in until it stumbles, then 1/8 turn it out to start? I ask because I can't make it stumble, which is making me slightly nervous. I am getting some 'pops' in mid-range now, but nothing at the 'starting off' end.
Turn Out = richer?
Turn In = leaner?
Right?
Club Member
Joined: Feb 2007
Posts: 16,320
Likes: 306
From: Boynton Beach, FloriDuh
Over the weekend, I managed to switch out the slow jet on my carb with a .42 jet, after realizing that a .44 was too much. I did it to try to aleiviate the hesitation/carb 'pops' when I take off. (only mod related is a K&N air filter filter and kit; it was 'popping even before the mod).
I also put in the EZ Adjustment screw. That was a good move in hindsight!
Question, 'cause I just want to confirm it: When tuning the carb when warm, you turn it in until it stumbles, then 1/8 turn it out to start? I ask because I can't make it stumble, which is making me slightly nervous. I am getting some 'pops' in mid-range now, but nothing at the 'starting off' end.
Turn Out = richer?
Turn In = leaner?
Right?
I also put in the EZ Adjustment screw. That was a good move in hindsight!
Question, 'cause I just want to confirm it: When tuning the carb when warm, you turn it in until it stumbles, then 1/8 turn it out to start? I ask because I can't make it stumble, which is making me slightly nervous. I am getting some 'pops' in mid-range now, but nothing at the 'starting off' end.
Turn Out = richer?
Turn In = leaner?
Right?
Start with the bike at normal operating temperature and the mixture screw turned out 2.5 - 3 turns and the idle speed turned down as low as it will go without stalling, then turn the mixture screw in until the motor starts to stumble, then turn it back out 1/4 turn.
If the mixture screw has to be turned out more than 3.5 turns to get it to idle properly, you need to go up a size on the pilot jet. A 44 is a non standard aftermarket jet size. Standard CV jet sizes are 42 - 45 - 48.
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Intermediate
Joined: Sep 2011
Posts: 33
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From: Halifax, Nova Scotia
Thank you cHarley!
I do have the K&N backing plate and gear. Part of what I was missing in the procedure is the idle sped adjustment. Looking at my shop manual, I've found it at least. Is it a bugger to get at with everything installed though?
I do have the K&N backing plate and gear. Part of what I was missing in the procedure is the idle sped adjustment. Looking at my shop manual, I've found it at least. Is it a bugger to get at with everything installed though?
Thread Starter
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Intermediate
Joined: Sep 2011
Posts: 33
Likes: 0
From: Halifax, Nova Scotia
So far, so good. Everything's in place and now it's just a matter of minor adjustments. Idling beautifully and will run perfectly with the choke out at an 1/8th of an inch out. I'll just work it 1/8th turns in until it's set.
Thanks for the help!
Thanks for the help!
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