Yamaha RAPTOR 50 Service Manual download pdf (Page 103)

4 - 14

ENG

CAMSHAFT, ROCKER ARMS AND VALVES

EBS00237

REMOVING THE ROCKER ARMS AND

CAMSHAFT

1. Loosen:

• locknuts

• adjusters

2. Remove:

• intake rocker arm shaft

• exhaust rocker arm shaft

• intake rocker arm

• exhaust rocker arm

NOTE:

Remove the rocker arm shafts with the slide

hammer bolt

and weight

3. Remove:

• camshaft

NOTE:

Screw a M8 bolt

into the threaded end of

the camshaft and then pull out the camshaft.

Slide hammer set

P/N. YU-01083-A

Slide hammer bolt (M8)

P/N. 90890-01085

Weight

P/N. 90890-01084

EBS00238

REMOVING THE VALVES AND VALVE

SPRINGS

1. Check:

• valve sealing

Leakage at the valve seat

→

Check the

valve face, valve seat and valve seat width.

Refer to “CHECKING THE VALVES AND

VALVE SPRINGS”.

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a. Pour a clean solvent

into the intake and

exhaust ports.

b. Check that the valve seals properly.

There should be no leakage at the valve

seat

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Yamaha RAPTOR 50 Service Manual Page 103

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