Piston kit for Yamaha Jog scooters. The piston kit includes the piston, the rings and the pin, which form the working chamber. It provides compression and transfers force to the connecting rod. The +0.75 size is an oversize: rings enlarged by 0.75 mm are matched to a rebored cylinder and a piston of the same size.
Replace it if compression drops, there is scoring, oil consumption and smoke. The size is chosen by the cylinder: after reboring an oversize is needed.
For JOG 50, model 3KJ. Manufacturer: TATA. Country of origin: China.
