Because of their small size, scooter engines are much more sensitive to stale fuel and fuel impurities than a car. The fuel passages in Scooters are small. Fuel that is perfectly fine for a car may clog up a scooter if it is left sitting for a longer period of time. Scooters are often driven short distances at slower speeds. This type of low RPM stop and riding, coupled with frequent electric starting can begin to drain a battery. A Battery tend and fuel stabilizer can easily correct this. Please contact your local Authorized Genuine Dealer for pointer on proper scooter storage.