piston set Naraku 50cc 40.25mm for Minarelli AM, Generic, KSR-Moto, Keeway, Motobi, Ride, 1E40MA, 1E40MB (cast iron cylinder)

High-quality replacement piston for 50cc original (cast iron, 40.25mm) and 50cc Naraku cylinder kits for Minarelli AM, Generic, KSR-Moto, Keeway, Motobi, Ride, 1E40MA, 1E40MB engines. Comes complete with piston rings, gudgeon pin and circlips. Special molybdenum coating for protecting the cylinder and piston during the run-in period. It is a good rule to change the piston in a 50cc 2-stroke engines after about 6,000 miles. This will help engine performance and reduce fuel consumption. Not recommended for Minarelli AM engines with factory-fitted aluminium cylinder because of piston size 40.3mm! In certain circumstances the Naraku piston can lead to noises when used in an aluminium cylinder.