2-8 PERIODIC MAINTENANCE
VALVE CLEARANCE
Inspect every 24 000 km (15 000 miles, 24 months).
• Remove the right under cowling. ( 6-5)
• Remove the front and rear seats. ( 6-8)
• Lift and support the fuel tank. ( 4-51)
• Remove the spark plugs. ( 2-5)
• Remove the cylinder head covers. ( 3-16)
The valve clearance specification is different for intake and ex-
haust valves.
Valve clearance must be checked and adjusted, 1) at the time of
periodic inspection, 2) when the valve mechanism is serviced,
and 3) when the camshafts are disturbed by removing them for
servicing.
Valve clearance (when cold):
Standard: IN. : 0.10 – 0.20 mm (0.004 – 0.008 in)
EX.: 0.20 – 0.30 mm (0.008 – 0.012 in)
NOTE:
* The cam must be at positions,
A
or
B
, in order to check the
valve clearance, or to adjust valve clearance. Clearance read-
ings should not be taken with the cam in any other position than
these two positions.
* The clearance specification is for COLD state.
* To turn the crankshaft for clearance checking, be sure to use a
wrench, and rotate in the normal running direction. All spark
plugs should be removed.
• Remove the valve timing inspection cap 1.
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