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Old 11-27-2011, 01:33 PM   #12
WFO for 41 years
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Joined: Dec 2008
Location: Kensington, NH USA
Oddometer: 5,415
Originally Posted by Duck_Pilot View Post
You are incorrect here, Sir. Some OEM & aftermarket suppliers offer in increments of 0.25mm....especially in racing-specific engines. I know this to be true of the Suzi PE-175 - the Yamaha IT-175's ISDE arch-rival. It's worth a look-see in Yamaha's FREE online lookup to be sure.

*EDIT* I took a quick look on "" and saw that the 1982 model had 4 oversize piston kits available, in +0.25, +0.50, +0.75 & 1.0mm. I had not noticed the OP's model year, but I suspect that the same pattern follows for most years, based on my past professional experience with Yamaha.

LOL, I knew it. I thought of writing "most" but got lazy. Carry on. Hone away.
Too much is just barely enough.....
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