'96 YZ125 cylinder mark...where??

[Steve10]

I'm in the middle of a top end rebuild on my nephew's bike. According to the Yamaha service manual, there should be an "A,B, C or D" on the cylinder so I can order the right piston. I don't see it anywhere.

 

[va_yzrider]

It may very well not be there at all. There wasn't one on my 2001 YZ 125. I would recommend taking the cylinder to a dealer or machinist and have them measure the bore to get the correct piston size (unless you have a micrometer, but then you wouldn't be asking).

 

[Rcannon]

My YZ was marked right under the exhaust manifold.

 

[nikki]

I'm in the middle of a top end rebuild on my nephew's bike. According to the Yamaha service manual, there should be an "A,B, C or D" on the cylinder so I can order the right piston. I don't see it anywhere.

Check on the outisde of the cylinder and towards the back (side that would face the reed cage/carb) if I remember right.