Yamaha YZ 2019 Series Owner's Service Manual page 259

EAM30139
REMOVING THE GENERATOR
1. Remove:
• Generator rotor nut "1"
• Washer
1
2. Remove:
• Generator rotor "1"
(with the rotor puller "2")
• Woodruff key
Rotor puller
90890-04142
Rotor puller
YM-04142
1
2
EAM30140
CHECKING THE STARTER CLUTCH
1. Check:
• Starter clutch roller
Damage/wear  Replace.
2. Check:
• Starter clutch idle gear
• Starter clutch gear
GENERATOR AND STARTER CLUTCH
Burrs/chips/roughness/wear  Replace the
defective part(s).
3. Check:
• Starter clutch gear
Damage/pitting/wear  Replace the starter
clutch gear.
4. Check:
• Damper assembly
Damage/pitting/wear  Replace the damper
assembly.
Check the gear of the starter motor armature.
5. Check:
• Starter clutch operation
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a. Install the starter clutch drive gear "1" onto
the starter clutch and hold the starter clutch.
b. When turning the starter clutch drive gear
clockwise "A", the starter clutch and the start-
er clutch drive gear should engage, otherwise
the starter clutch is faulty and must be re-
placed.
c. When turning the starter clutch drive gear
counterclockwise "B", it should turn freely,
otherwise the starter clutch is faulty and must
be replaced.
B
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EAM30141
INSTALLING THE STARTER CLUTCH
1. Install:
• Stator "1"
• Stator bolt "2"
5-60
A 1