My son bought one of these last Fall and had fun on it for about 3 months before the kick starter quit engaging. We couldn't even push start it. Finally tore into it last night and there's no splines left on the clutch basket. He has ordered another complete clutch assembly for about $50. My question is what was he doing to wear the basket out so quickly? Or is the metal they make these out of just that bad? Anyone else have a similar experience? Thanks!