Yamaha WR250FM Bicycle User Manual


 
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ENG
AC MAGNETO AND STARTER CLUTCH
EC4L3000
REMOVAL POINTS
Rotor
1. Remove:
Nut (rotor) 1
Plain washer
1
2. Remove:
Rotor 1
Use the rotor puller 2.
Rotor puller:
YM-04141/90890-04141
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.
Starter clutch
1. Check:
Starter clutch
Damage/wear Replace.
2. Check:
Idle gear
Idle gear shaft
Starter clutch gear
Pitting/burrs/chips/roughness/wear
Replace the defective parts.