Yamaha WR450F(R) Owner's Service Manual page 458

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AC MAGNETO AND STARTER CLUTCH

Starter clutch

Starter clutch

Damage/wear → Replace.

Idle gear shaft

Starter clutch gear

Pitting/burrs/chips/roughness/wear

Replace the defective parts.

Starter clutch operation

Install the starter clutch drive gear 1 onto

the starter clutch 2 and hold the starter

When turning the starter clutch drive gear

counterclockwise ı, the starter clutch and

the starter clutch drive gear should

engage. If the starter clutch drive gear and

starter clutch do not engage, the starter

clutch is faulty and must be replaced.

When turning the starter clutch drive gear

clockwise Å, it should turn freely.

If the starter clutch drive gear does not

turn freely, the starter clutch is faulty and

must be replaced.

ASSEMBLY AND INSTALLATION

AC magneto and starter clutch

Bolt (stator) 2

Pick-up coil 3

Bolt (pick-up coil) 4

Pass the AC magneto lead 5 under the pick-

7 Nm (0.7 m · kg, 5.1 ft · lb)

10 Nm (1.0 m · kg, 7.2 ft · lb)

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