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Yamaha MX & Off-Road Dirt Bikes
4 different pistons for '95 YZ250???
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[QUOTE="Ol'89r, post: 1308802, member: 17212"] That is incorrect. Your dealer is correct. Find the letter on your cylinder and order the piston with the corresponding letter. Pro-X sells the B, C and D piston. There is less than 1/3 of a thousands between the B and C pistons. Aprox, .00025" not .010". Your cylinder is plated and cannot be bored or honed oversize without installing a cast iron sleeve. The sizes for the standard pistons are 68.00mm, 68.01 and 68.02mm. The Pro-X piston kit is available through LASleeve.com. Buy the correct piston. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
4 different pistons for '95 YZ250???
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