Yamaha WR450F Manuel D'atelier Du Proprietaire page 462

AC MAGNETO AND STARTER CLUTCH
1
EC4L3000
REMOVAL POINTS
Rotor
1. Remove:
• Nut (rotor) 1
• Plain washer
Use the sheave holder 2.
2
2. Remove:
• Rotor 1
Use the rotor puller 2.
EC4L4000
INSPECTION
AC magneto
1. Inspect:
• Rotor inner surface a
• Stator outer surface b
Damage → Inspect the crankshaft runout
and crankshaft bearing.
If necessary, replace AC magneto and/or
stator.
EC4L4200
Woodruff key
1. Inspect:
• Woodruff key 1
Damage → Replace.
4 - 81
ENG
Sheave holder:
YS-1880-A/90890-01701
Rotor puller:
YM-04142/90890-04142