Removing The Rocker Arms And Camshaft; Checking The Camshaft - Yamaha XT660R S Service Manual

ROCKER ARMS AND CAMSHAFT
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EAS00202
REMOVING THE ROCKER ARMS AND
CAMSHAFT
1. Loosen:
• locknuts
• adjusting screws
2. Remove:
• camshaft retainer 1
3. 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 1 and weight 2.
Slide hammer bolt
90890-01083
Weight
90890-01084
4. Remove:
• camshaft
EAS00205

CHECKING THE CAMSHAFT

1. Check:
• camshaft lobes
Blue discoloration/pitting/scratches →
Replace the camshaft and camshaft
sprocket.
ENG