i have a 2001 honda 400ex which i recently bought for $1300, the guy beat the hell out of it and NEVER CHAGED THE OIL!!!! so now i need a new crank, second gear, and top end overhaul. i'll get the top end parts off ebay but where can i get a crankshaft or maybe just a new journal, bearings and rod? second gear parts too. also, how much does it cost to get the old cylinder bored out and sleeve pressed into the cylinder? if its not too much for the machinng i might consider the 440 kit