Top End Rebuild Kit: Yamaha PW50 PW 50 60cc (1981-2022) Yamaha RD350 EFI Technology AC2i / AC3i

EFI Technology AC2i / AC3i / AC5i /AC8i units

This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on an RG400 HK31A

31600-MV4-010

The models are K3 to L0

You'll get the spark that your KZ650 has always deserved

Top End Rebuild Kit: Yamaha PW50 PW 50 60cc (1981-2022) Yamaha RD350 EFI Technology AC2i / AC3iBrand new big bore top end engine rebuild kit to fit: Yamaha PW 50 60cc Big Bore (1981 2022). Upgrade your cylinder from 50cc to 60cc with no modifications necessary from the standard PW50. This is the highest quality aftermarket big bore PW50 top end rebuild you can get on the market. From 40mm to 44mm diameter piston and bore. The kit includes everything you need to completely rebuild the top end: Cylinder Gasket Piston Kit (Piston kit includes