Yamaha XVS6501997 Service Manual page 61

A
VALVE CLEARANCE ADJUSTMENT
B
8. Remove:
S Camshaft sprocket covers 1
9. Remove:
S Timing plug 1
S Straight plug 2
10. Measure:
S Valve clearance
Out of specification ! Adjust.
Valve clearance (cold):
Intake valve:
0.07 X 0.12 mm
Exhaust valve:
0.12 X 0.17 mm
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Measuring steps:
D Turn the crankshaft clockwise with a wrench.
D Align the camshaft sprocket mark a with the
stationary pointer b on the cylinder head.
When the mark is aligned with the pointer, the
piston is at Top Dead Center (TDC).
D Check the front/rear cylinder timing mark c
on the rotor. If necessary, turn the crankshaft
to align the timing mark with the pointer d on
the AC magneto cover.
A For rear cylinder ("TI" mark)
B For front cylinder ("I" mark)
3-5
INSP
ADJ