Carburetor Acting Strange...

mq1991 · 06-15-2016, 09:30 PM

Hey everyone! Need some advice on my carb tuning..

Heres the deal:

- Jets are 25 pilot, 110 main, needle clip is on the 4th spot down from the top.
- Carb was just cleaned
- Checked for air leaks with a propane bottle, couldnt find any.

My idle mixture screw is making me scratch my head, If I have it open at all, the bike idles way too high and I cant get it to come down (3000rpm ish). If I put the choke ON, it brings the idle down to almost perfect.

I tried completely closing the idle mixture screw, and now my bike idles at 1800rpm almost perfect, every once in awhile ill blip the throttle and the rpm will settle back down after a WOT run.

Any ideas on why this is happening? The video is with the idle mixture screw completely closed.

06-15-2016, 09:30 PM	#1
mq1991 Join Date: Mar 2016 Location: Gurnee, Illinois Posts: 277	Carburetor Acting Strange... Hey everyone! Need some advice on my carb tuning.. Heres the deal: - Jets are 25 pilot, 110 main, needle clip is on the 4th spot down from the top. - Carb was just cleaned - Checked for air leaks with a propane bottle, couldnt find any. My idle mixture screw is making me scratch my head, If I have it open at all, the bike idles way too high and I cant get it to come down (3000rpm ish). If I put the choke ON, it brings the idle down to almost perfect. I tried completely closing the idle mixture screw, and now my bike idles at 1800rpm almost perfect, every once in awhile ill blip the throttle and the rpm will settle back down after a WOT run. Any ideas on why this is happening? The video is with the idle mixture screw completely closed.
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