5) Remove the 6 x 12 mm flange bolt and slide off the timing
inspection hole cover.
6) Turn the crankshaft by pulling the recoil starter gently and
set the piston at top dead center of the compression stroke
(both valves fully closed).
The TDC mark on the rotor will align with the timing mark
on the fan cover when the piston is at top dead center of
the compression stroke.
7) Insert a feeler gauge between the rocker arm and valve to
measure valve clearance.
8) If adjustment is necessary, proceed as follows:
a. Hold the rocker arm pivot and loosen the rocker arm
pivot lock nut.
b. Turn the rocker arm pivot to obtain the specified
clearance.
c. Retighten the rocker arm pivot lock nut while holding the
rocker arm pivot.
d. Recheck the valve clearance after tightening the rocker
arm pivot lock nut.
TORQUE: 10 N.m (1.0 kgf.m, 7 Ibf.ft)
9) After adjustment, reinstall the removed parts in the reverse
order of removal.
TORQUE:
Head cover bolt:
10 N.m (1.0 kgf.m, 7 Ibf.ft)
Head cover shroud special bolt:
8.5 N.m (0.9 kgf.m, 6.3 Ibf.ft)
3-7
[1] TIMING INSPECTION
HOLE COVER
6 x 12
[2] TDC MARK
[1]
TIMING MARK
[2]
FEELER GAUGE
[1] ROCKER ARM
PIVOT LOCK NUT
[1] ROCKER ARM
PIVOT LOCK NUT
[3]
ROCKER ARM PIVOT
[3]
ROCKER ARM
PIVOT
Valve clearance
IN
0.15 ± 0.02 mm (0.006 ± 0.001 in)
EX
0.20 ± 0.02 mm (0.008 ± 0.001 in)
cap.03 EU65is 6500is (Eu).qxd 07.12.17 4:43 PM ページ3-7
