2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 208Get this manual
MIDDLE GEAR Install
the bearing onto the yoke
CAUTION:
Check each bearingThe needles can easily fall out of their racesSlide the yoke back and forth on the bearings; the yoke will not go all the way onto bearing if needle is out of place Press
each bearing into the U-joint using suitable socket
NOTE: The bearing must be inserted far enough into the U-joint so that the circlip can be installed Install