pistons?

[REEL-BREAK]

I noticed yamaha pistons come in .25mm and .50mm over sizes. My question is I see some different places that have .020 .040 .060 are these a aftermarket pistons and is it ok to use them?Yamaha 130 txrs thanks

 

[Dhadley]

Re: pistons?

Yes you can use the Wiseco pistons. The machine shop will know what to bore it to. But just in case, the finished bore size is now printed on the box of the new 31 series pistons.<br /><br />Good luck!