it can and will happen, bang the shifter coming off a jump. i have seen it happen trailering stock bikes that are in gear. conditions are right it will happen. before you split the cases, pull the clutch cover make sure the eccentric didn`t come loose. if the shift shaft adjustment is kosher u prolly bent a fork.
back of the cases, theres a hand engraving upper and lower, back right hand side, both sets of numbers and letters should match.right by thr right hand side rear motor mount.
bought a few heads, impellars, throttles,and other billet parts, not a problem with one. bought from e bay, straight from chariot, and through root. always got what i ordered in perfect condition.
SPECIAL TOOL?u mean a 32mm socket? what the guy did was fraud. the yr wise value really means nothing here in the states, it could be 03 junk, or 97 junk.
if u use an impact u will definitly ruin a puller, one of 2 things, the threads on the puller, or the flywheel are buggered. i keep old pullers around for just such problems. if u cant thread the puller in. weld the puller to the flywheel.