Yamaha RS90K Manuel D'atelier page 66

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1
VALVE CLEARANCE ADJUSTMENT
NOTE:
• Apply molybdenum disulfide oil to the valve pad
• The valve lifter must turn smoothly when rotated
• Install the valve lifter and the valve pad in the cor-
NOTE:
• Refer to "CAMSHAFTS" in CHAPTER 5.
• Lubricate the camshaft caps, camshaft lobes,
• Align the camshaft marks with the camshaft cap
• Rotate the crankshaft clockwise several turns to
10. Install:
11. Install:
NOTE:
For installation, reverse the removal procedure.
Note the following points.
2-12
• Install the new valve pad 1 and the valve lifter
2.
and the valve lifter.
by hand.
rect place.
• Install the exhaust and intake camshafts, timing
chain and camshaft caps.
Camshaft cap bolt:
10 Nm (1.0 m · kg, 7.2 ft · lb)
camshaft journals and camshaft cap bolts.
marks.
seat the parts.
• Measure the valve clearance again.
• If the valve clearance is still out of specification,
repeat all of the valve clearance adjustment
steps until the specified clearance is obtained.
9. Install:
• Crankshaft end accessing screw
• Timing mark accessing screw
• Cylinder head cover
Refer to "CAMSHAFTS" in CHAPTER 5.
• All removed parts
INSP
ADJ