Thread: 50cc topping at 25, low compression?
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Old 03-25-2014, 05:50 PM   #12
Firehawk989   Firehawk989 is offline
 
Join Date: Mar 2013
Location: Vancouver, BC
Posts: 198
Quote:
Originally Posted by blueboy5000 View Post
the LARGEST main jet your bike should use is #78, but I'd use a 74 or 75. Your mainjet is way too big.
He's got a BBK on there now though, isn't 85-90 about what you want for a BBK?
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