3 - 14
CHK
ADJ
ADJUSTING THE VALVE CLEARANCE
6. Measure:
• valve clearance
Out of specification
→
Adjust.
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a. Turn the crankshaft counterclockwise.
b. When the piston is at the top dead center
(TDC) on the compression stroke, align the
“I” mark
a
on the A.C. magneto rotor with
the stationary pointer
b
on the A.C. mag-
neto cover.
NOTE:
To position the piston at top dead center (TDC)
on the compression stroke, align the “I” mark
c
on the camshaft sprocket with the stationary
pointer
d
on the cylinder head, as shown in
the illustration.
c. Measure the valve clearance with a thick-
ness gauge
1
.
Out of specification
→
Adjust.
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7. Adjust:
• valve clearance
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a. Loosen the locknut
1
.
b. Insert a thickness gauge
2
between the
end of the adjusting screw and the valve tip.
c. Turn the adjusting screw
3
in direction
a
or
b
until the specified valve clearance is
obtained.
Valve clearance (cold)
Intake valve
0.09 ~ 0.13 mm
(0.0035 ~ 0.0051 in)
Exhaust valve
0.16 ~ 0.20 mm
(0.0063 ~ 0.0079 in)
Thickness gauge
90890-03079
Direction
a
Valve clearance is
increased.
Direction
b
Valve clearance is
decreased.
a
b
1
c
d
2
3
1
a
b
Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
email: info@motomatrix.co.uk
Содержание XT660R 2004
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