I recently bought a 1982 Honda CS250 four-stroke road bike. The bike starts good and runs good except.... when in a higher gear (3-5) and you let off the throttle to coast, and then open the throttle up again, it has a real bad hesitation. If you leave it 3/4 choked, it eliminates the problem. That would lead me to believe that it is running way to lean and choking it richens the mixture and makes it run better, but I searched for a mixture adjustment screw and cant find one.... the only adjustment screw i could find on the carb is up by the intake manifold and it faces downward. I turned it in (to the right) about a turn and a half and it helped a little bit, but im assuming that screw is like any other carb adjustment screw and turning it in would make it leaner.. so it doesnt make sense. Does anyone have any ideas? Also what does that screw adjust? Also sometimes when i start it, it make almost a whistling sound that i think is coming from the exhaust? Is this related?
2007-08-31
14:54:13
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8 answers
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asked by
Anonymous
in
Motorcycles