Crankshaft oil seals for 2-stroke Piaggio/Gilera 50 cc engines seal the crankcase on both sides of the crankshaft. This is critical for a 2-stroke engine: the mixture is precompressed in the crankcase.
- A worn seal lets air in: unstable and elevated idle speed, overheating, and poor starting.
- It is convenient to replace them together with the crankshaft bearings.
Tell us your scooter model when ordering and we will check the dimensions.
