Edited sentence: An alternative is to push start the motorcycle.Car batteries can generally jump start a motorcycle easily without any help from the car's alternator.Many very old motorcycles (and cars) have 6-volt systems and cannot be jump started safely with a car, but newer designs with 12-volt systems may be jump started with a car or truck.Unlike jumping another car, when starting a motorcycle this way, the car providing the jump must be turned off to avoid overloading the motorcycle, causing the fuses to blow or damage to the electrical system