2007 Yamaha Apex Factory Service Manual, Page 426Get this manual

2007 Yamaha Apex Factory Service Manual, Page 426

GEAR SELECTION 5 Torque cam (secondary spring seat) Identification mark INSP ADJ B Effects Quicker upshifting during acceleration
C Part no D Cam angle E Identification mark F Standard 8FA-17604-00 8BV-17604-71 8BV-17604-51 51-43_ 47_ 45_ 43_ 41_ 39_