Checking The Starter Clutch - Yamaha YZ450FX 2019 Owner's Service Manual

EAM30140

CHECKING THE STARTER CLUTCH

1. Check:
• Starter clutch assembly
• Starter clutch drive gear
Burrs/chips/roughness/wear  Replace the
starter clutch.
2. Check:
• Starter clutch assembly gear
Damage/pitting/wear  Replace the starter
clutch assembly.
3. 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
counterclockwise "A", it should turn freely,
otherwise the starter clutch is faulty and must
be replaced.
c. When turning the starter clutch drive gear
clockwise "B", the starter clutch and the start-
er clutch drive gear should engage, otherwise
the starter clutch is faulty and must be re-
placed.
B
A
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STARTER CLUTCH