I have a '99 wr400, 6 months old with 600k's on it. Yesterday during a ride i went to kick start it when at the bottom of the kick stroke just as it started there was a loud BANG & CRUNCH...then it stalled. When i pressed down on the kick start lever it went down with no resistance & sprang back up untill it hit the tank! Stuck in the bush with no kickstarter and #$%*ing pissed off with my "new" bike, we clutch started it. The motor sounded fine with no ginding or crunching so i rode home slowly. After opening it up i found the "RATCHET WHEEL " (owners manual pg 4-60 part 5) had broken into 3 bits! No other real damage apart from some dents and scratches in the case. Metal was found traped in oil filter (no further into the engine i hope). YAMAHA has told me i can't buy just that part i have to buy the whole kick shaft assembly $253!!!! Has anyone heard of this?