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Old 06-24-2014, 06:37 PM
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MotorBicycleRacing MotorBicycleRacing is offline
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Join Date: Jul 2010
Location: SoCal, Orange County.
Posts: 5,353
Default Re: Just set up a new lower engine, and now the rear wheel locks when clutch is engag

Originally Posted by sergman89 View Post
I bought a new piston as well because my old piston had an arrow shaped chip of metal missing from its top side.
That triangle mark is to indicate where the ring pins are so points to the intake side.

All my pistons have them.
Other pistons have an arrow that points to the exhaust port.

There was nothing wrong with your piston.
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