I had similar problem first week after i bought mine. the bolt that holds the wires to the battery were bad. I dont know if its a bad parts problem, or if thats something that gets installed when they unpack and assemble the bike outof the crate. I know the bikes dont have oil in them in the crate, might not have battery. either way, on mine the bolt was stripped and wouldnt tighten down. would work and then all of a sudden not...dealership replaced the battery problem solved.