Sophomore
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Fear leads to anger. Anger leads to stress. Stress leads to doobies. And doobies lead to twinkies
Posts: 66
A+'s: 1
Joined: Jul 11, 2011 16:18:41 GMT -6
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Post by scooteraddict on Aug 27, 2011 13:30:57 GMT -6
Now that I have my bike (a MC 250B) running like a top, I have a small problem with the Carb. It seem that after starting the bike cold and taking it for a ride at high speed, WOT, the Carb like sticks. Can't tell if the needle is coming out of the seat or the slide just gets hung up. Since I had just recently tuned the Carb which I can achieve speeds of 80mph (chinometer reading). What I,m thinking is that the vacuum at that speed is so great that its raising the slide too high.
Any ideas to combat this problem?
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Post by alleyoop on Aug 27, 2011 15:50:45 GMT -6
You might try a NEW spring in the Diapghram to maybe hold the needle down a little.
Alleyoop
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Post by JR on Aug 27, 2011 17:33:31 GMT -6
When You say sticks do you mean at WOT or what? Does the throttle handle stick and keep the scooter at WOT?
JR
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Sophomore
Currently Offline
Fear leads to anger. Anger leads to stress. Stress leads to doobies. And doobies lead to twinkies
Posts: 66
A+'s: 1
Joined: Jul 11, 2011 16:18:41 GMT -6
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Post by scooteraddict on Aug 27, 2011 20:18:35 GMT -6
At WOT, the butterfly valve open full, the vacuum slide will stick. The round slide with diaphragm on top. The throttle will return to normal but the slide will stay elevated. I would have to take the top cap off and reset or unstick the slide as to the proper position.
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Post by JR on Aug 28, 2011 17:43:21 GMT -6
Hmmmm that's a new one on me? Try taking her apart and some very fine steel wool and polish the slide tube and the inside of the carb where it moves, may be a little burr of some sort also the needle itself. Be careful and not damage the rubber diaphragm itself.
JR
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..BAD TO THE BONE..
