125-200cc Do 125 piston kits really go from 98-2013?

I'm starting to look for a ring or full piston kit for my 99 WR125. Do the parts really cross over from 98 thru todays new 2013 125s? Any difference in the WR vs. CR 125 pistons or cylinders in 99? Was OEM a single ring or double?

Thanks, Jim

Same piston. Single ring. OEM piston is a very quality piece.

Yes they do fit that many model years.

Awesome, thank you. Looks like I'll just ring mine then.

Does that go for gaskets too? Specifically the cylinder base gasket? I can get a ring in there with just that, right? Thanks, Jim

LOL! I thought the ring might be a bit tired as it was so easy to kick, till my son tried it and said it had at least as much resistance as his KTM 125 with a brand new top end. I guess that I need to adjust more than my riding style going back to a 125! Looks like the top end can wait!

I put a new piston in mine, a 1998 without breaking the head/cylinder connection. The only reason I did that is power valve broke where a little rod pushes and pulls it in it's bore. If you hear a vzzz kind of noise stop immediatly before the powervalve hits the piston. The origional is quite an impressive high quality item at least in my opinion. The advice I go was to use the thinnest gasket which I did and that was what was in there at least within my error range.

The ktm 125/200 design seems to be able to carbon up and stick but none of the parts seem like they can get loose. I can't see a way to inspect the place that failed without taking the cylinder off. The husky design neved did carbon up and stick on me.

Thanks Frank. Do you recall if the gasket is the same as later/current models?

Jim