Yamaha WR250FM service manual Plain washer rotor Nut rotor

AC MAGNETO AND STARTER CLUTCH

ENG

1

E 2

3 4

2

1

2

3

1

3

2

5.Install:

•Plain washer 1

•Bearing 2

•Starter clutch drive gear 3

•Starter clutch 4

NOTE:

Apply the engine oil on the plain washer, bear- ing and starter clutch drive gear inner circum- ference.

6.Install:

•Woodruff key 1

•Rotor 2

NOTE:

•Clean the tapered portions of the crankshaft and rotor.

•When installing the woodruff key, make sure that its flat surface a is in parallel with the crankshaft center line b.

•When installing the rotor, align the keyway c of the rotor with the woodruff key.

7.Install:

• Bolt (starter clutch) 1

T.R. 16 Nm (1.6 m · kg, 11 ft · lb)

•Plain washer (rotor)

•Nut (rotor) 2

T.R. 70 Nm (7.0 m · kg, 50 ft · lb)

8.Install:

• Dowel pin

• Gasket [crankcase cover (left)] New

•Crankcase cover (left) 1

•Bolt [crankcase cover (left)] 2

T.R. 10 Nm (1.0 m · kg, 7.2 ft · lb)

•Bolt [crankcase cover (left)] 3

T.R. 12 Nm (1.2 m · kg, 8.7 ft · lb)

NOTE:

Tighten the bolts in stage, using a crisscross pattern.

4 - 84