[pistons] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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pistons
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Posted by: honda965

well, i think mine are shot. what do they really do? what type should i get&size. 300ex....2003

Posted by: gotwarrior

If you need a new pistion get a 11:1

Posted by: slade

Wiseco 10.5 to 1. You can still run pump gas.

Posted by: Sjorge300EX

quote:
Originally posted by slade
Wiseco 10.5 to 1. You can still run pump gas.

dont make them for the 300ex.

The 11:1 is fine on pump gas. I did it all season long. I have a .02 over that was in my motor for a year, you can have it if you want, just pay for shipping. Piston is fine, just needs cleaned and new rings.

Posted by: Kickstarts_Suck

If you dont know what pistons do then how would you know if they are shot?

o and a 300ex is a single cylinder