●Place the crankshaft on the piston TDC
○TDC sign of flywheel is [A]
○
Timing sign: [A] (Half meshing surface of crankcase)
●Use the thickness gauge [A] to measure the valve clearance
between cam and valve lifter at the TDC position.
Note
Please keep the thickness gauge level to prevent that the
misjudgement gets stuck.
V
alve clearance
Standard:
Inlet valve: 0.13-0.15 mm
Exhaust valve: 0.15-0.17 mm
N
ote
Thickness gauge shall be inserted in the valve lifter
horizontally.
P
roper: [A]
Improper: [B]
Feeler: [C]
Horizontally insertion: [D]
Cam: [E]
Valve lifter: [F]
The front end of feeler is stuck on the valve lifter, which is a wrong
method: [G]
★If the valve clearance is not within the specified scope, record the
valve clearance and then carry out the adjustment.
2-19
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