Removing The Rocker Arms And Camshaft; Checking The Camshaft - Yamaha YBR250 2007 Service Manual

3
ROCKER ARMS AND CAMSHAFT
2
1
1
2
2
1
5-17
REMOVING THE ROCKER ARMS AND
CAMSHAFT
1. Loosen:
• Locknuts 1
• clearance adjusting bolts 2
2. Remove:
• camshaft holder 3
3. Remove:
• intake rocker shaft
• exhaust rocker shaft
• intake rocker arm
• exhaust rocker arm
NOTE:
Remove the rocker shafts with the sliding hammer
1 and the shaft 2.
Sliding hammer
90890-01084
Shaft
90890-01083
4. Remove:
• camshaft 1
• bearing 2
NOTE:
Use a bolt with thread of 10mm to pull the camshaft
out.

CHECKING THE CAMSHAFT

1. Check:
• camshaft cames
Blue color/Pitting/Scratches --> Replace the
camshaft and the timing sprocket.
ENG