Ok, so the gear for the kickstart would make a buzzing noise but would go away if I messed with the kick arm. I was riding and didn't realize the bike was in 3rd from stop and stalled the motor. I went to kick start it and the arm had shot forward and it ended up cracking around the kick start gear on the crankcase housing. I have a few questions before starting the rebuild. Just an FYI, I am pretty experienced with tools. I work on cars and airplanes as a hobby, but don't have much experience with bikes. 1) what special tools will I need to disassemble and reassemble the motor? 2) is there any recommended changes while I have the motor broken down? 3) is there kits available for rebuilds and/or is there any shortcuts from removing every bolt and part to get to the crankcase housing? 4) do I need to replace both side crankcase housings (to pair up correctly) or can I buy just the right hand side? This is for a 2005 WR350F. Thanks guys!