A set of piston rings, 40.00 mm in diameter, for 2-stroke scooters with chain drive. The rings seal the piston in the cylinder: they hold compression and keep oil out of the combustion chamber. Country of origin: China.
Replace the rings if compression has dropped, the engine starts poorly, oil consumption has gone up, or bluish smoke comes from the muffler. Choose by piston diameter. If you are unsure about compatibility, call us and we will advise based on your model.
What to consider when choosing:
- cylinder and piston diameter
- number of rings on your piston
- oversize, if the cylinder has been bored
