tpauldoiron

Well if your talking about when you trying to start it and it clunk and skip, well that would be your starter clutch on the oneway bearing. Hope this is any help, if that's what you were talking about lol

Well Ive had both of them, both great bikes and fast, 450 very light weight and 700 very Heavy, But your going to get less problems with the 700. The yfz450 are know to blow. And for trail riding the raptor 700 is King of Trails lol