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Problem with YZ 250 Motorcycles

trying to tune my bike for my son to race on it next weekend, i live at sea level, air temp is 60-70, daily, i am asking, how many turns do i turn the air uel screw on a keihin carb. that is in

a 95 yz 250, my oil fuel mix is 36:1, i was told 21/2 turns from closed.

Posted by avatar on Mar 02, 2010

Solutions (1)

Best Solution

Yes two and half turns from close or say three, but let the bike's engine run for a while to come to normal running temperature thn you do the adjustment.
Not bad if you check the air-filter too and the spark plug gap!
Hope this helps!

Testimonial: "thanks knite 007, i got it running prety good yesterday."

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