2004 Official factory service manual for Yamaha YFZ450S ATV Quad., Page 181Get this manual
A.CMAGNETO
CHECKING THE TORQUE LIMITER 1Check: torque limiter Damagewear Replace
EBS00268
INSTALLING THE A.CMAGNETO ROTOR 1Install: stator coil pickup coil NOTE: Align the projection on the stator coil with the slot in the A.Cmagneto cover_