2. PERIODIC MAINTENANCE
2-6
CAUTION
Valve clearance adjuster locknut:12N.m
Valve clearance of cylinder 1
Using a 14 mm Allen key, turn crankshaft 280
°
counterclockwise.
1.
Allen key 14mm
2.
Turn crankshaft 28
0
°
counterclockwise
At TDC ignition, the printed marks on the camshaft
timing gear have to be parallel to cylinder head base as
per following illustration.
TYPICAL
1.
Printed marks on camshaft timing gear
2.
Cylinder head base
Insert the feeler gauge between the valve stem end and
adjusting screw on the rocker arm to check the clearance.
If the valve clearance is out of specification, adjust valves
as follows.
Valve clearance
Intake
0.05 to 0.09mm
Exhaust
0.10 to 0.15mm
Use mean valve of exhaust/intake to ensure a proper valve
adjustment.
Hold the adjustment screw at the proper position and
torque the locking nut.
Repeat the procedure for each valve.
4.
Adjustment screw
5.
Adjustment nut
6.
Feeler gauge
Valve clearance adjuster locknut:12N.m
CAUTION
Install the valve cover of both cylinders, spark plug cable and spark plug of both cylinders, the plug screw and
O-ring of magneto cover and the crankshaft position sensor.
Securely tighten the locknut after completing adjustment.
Securely tighten the locknut after completing adjustment.
