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Post by inca32 on Aug 19, 2014 17:52:53 GMT -6
Sunny 50cc scooter, replaced carb. Starts, idles and performs great until you go full throttle. Then it bucks until you easy off and reach cruising speed then it's fine again. Carb has 33mm jet and 85mm high speed jet. Any ideas on how to resolve?
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Post by alleyoop on Aug 19, 2014 18:22:45 GMT -6
Is this a stock 50cc scoot, if so the 85 main jet is to big it is flooding on the top end.
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Post by inca32 on Aug 19, 2014 19:00:39 GMT -6
Yes, stock engine. What should I be looking at?
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Post by alleyoop on Aug 19, 2014 19:12:50 GMT -6
Put the OEM back in if you changed it, if not try a #75 they usually come with a main jet in the high 60s.
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Post by inca32 on Aug 19, 2014 19:29:20 GMT -6
Thanks, I will try it.
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Post by inca32 on Aug 20, 2014 20:43:41 GMT -6
Put in a 77mm jet today and it runs perfect. Pulls smoth and strong all the way to top end! Thanks again for the help!
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Post by alleyoop on Aug 20, 2014 21:17:01 GMT -6
FANTASTIC!! Good job
Ride safe
Alleyoop
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..BAD TO THE BONE..