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Post by cowboy on Jul 27, 2013 15:17:51 GMT -5
How can I richen the fuel mixture in the carb is running way to lean
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Post by pmax150rydr on Jul 27, 2013 15:30:05 GMT -5
If it's the Chinese clone type carb, the most common you can adjust the idle mixture by turning a small screw on the side or the carb. But on most its covered by a brass plug. You tube will show different ways to remove and then adjustment as well usually.
Sent from my C5170 using proboards
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Post by 90GTVert on Jul 27, 2013 18:22:55 GMT -5
Depends where it's lean. Idle - 1/4 throttle is the mixture screw/pilot jet. 1/4 - 3/4 throttle you should adjust needle settings (raise the needle by lowering the clip to richen). 3/4 - wide open you'll need a larger main jet.
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Post by cowboy on Jul 27, 2013 18:31:19 GMT -5
Its got a big bore 100 cc kit with #90 jet but I still think its too lean it will only do 30 mph so Idk after that
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Post by 90GTVert on Jul 27, 2013 18:37:48 GMT -5
Compression test psi? Cam timed properly? Valves set .002-.003"?
Restricted CDI?
Airbox, UNI pod,...?
Rollers too light or too heavy (high or low revs)?
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Post by cowboy on Jul 27, 2013 18:43:06 GMT -5
Compression is at 120 upgraded cdi valves are set at .003 and .004 and stock air box have a pod but don't know if it will be to much air but who knows so frustrated now am thinking about selling it and moving on toa more stylish scoot
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Post by 90GTVert on Jul 27, 2013 18:48:02 GMT -5
120psi is low if you expect good performance, assuming the tester is sealing well. If the "restriction" is still in the airbox, 90 may actually be big. With the restriction out, it may be small. If you don't know what I'm talking about, it's shown around 6min in this vid... www.youtube.com/watch?v=K5j8gHg5kMc |
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