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Old 09-10-2009, 12:49 PM
Bikeguy Joe Bikeguy Joe is offline
Godfather of Motorized Bicycles
Join Date: Jan 2008
Location: up north now
Posts: 11,531
Default Re: new motor break in

Originally Posted by wes View Post
\this motor is only running smoth during acceleration, once it levels out it runs rough, i let it slow down and give it gas and it will run smooth until it quits acelerting, im not rappin it out it, does this even at half throttle
That's completely normal, before break in is complete. After that, you SHOIULS break into a four cycle when not under load. A properly running piston ported 2 stroke will break back and forth between a four cycle and a two cycle at cruise, breaking into a clean two cycle when the throttle is opened.
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