Question about Boyesen Yamaha Yz125 Rad Valve Yz 125 1994

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I put a new piston into my 94 Yamaha yz125 dirt bike and when i tried to start it has low compressions

I put a new piston into my 94 yamaha yz 125 dirt bike. When i try to start it has very low compression.

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I had a similar problem check to make sure the rings line up right and if that dosent work let me know

Posted on Feb 20, 2013

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