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Good after market 2 stroke piston

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I whittled one out of cheese. Performance and reliability are of extreme excellence. 

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3 reasons..

 

1. Yamaha Engineers designed for a cast piston. The metalurgy is different between forged and cast...Wiseco compensates with a loose fitting piston. Hence the Wiseco knock and long warm-ups.

 

2. Cast pistons feel better...Crisp, smooth and quiet.

 

3. Nobody in the 90's MX scene ran Wiseco...even teams sponsored by Wiseco ran OEM pistons.

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