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kx125 help

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I got a blown up kx 125. pulled the jug off an there is no numbers on the top of the piston. so how can I find out what size piston I need?

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Uh, what? No.

It could have been bored and re-plated, or bored and sleeved, or who knows what. The fact that there is no number stamped in the top would seem to indicate a STD piston, but you need to measure the bore or have it measured to be sure.

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Uh, what? No.

It could have been bored and re-plated, or bored and sleeved, or who knows what. The fact that there is no number stamped in the top would seem to indicate a STD piston, but you need to measure the bore or have it measured to be sure.

Yes, exactly!!!

Also, it needs to be mic'd by a shop because Wiseco actually produces 3 sizes of pistons. Each just larger by a few thousandths. These are noted by A, B, C for the wear of a cylinder.

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