Hello all. i just tore the topend off my 93 (?) YZ125. Does anyone know what is an acceptable ring end gap? Im measuring .021". Also the piston looks good but how can u tell if a new piston is needed or if just ringin it will suffice? Im assuming that the cylinder in Nicasil?! Any input will be appreciated, and yes i know i need a manual.
Thank you.
Thank you.