Quick view Kawasaki 1980-1985 Yamaha YT125 Tri-Moto Cylinder Boring Service Compare MSRP: $100.00 - $300.00 1980-1985 Yamah YT125 Tri-Moto Cylinder Boring Service includes: Remove old gasket material and dowel pins. Clean cylinder in ultrasonic cleaner. Inspect cylinder bore for wear or damage. Bore and hone cylinder to next oversize piston. Chamfer and... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List