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MAINTENANCE
l Remove the control panel.
l Locate the fuel filter and note the filter's orientation.
l Using pliers, squeeze the fuel line clips and slide the fuel
lines away from the filter.
l Install the fuel lines onto the new filter. Ensure the fuel
filter is oriented correctly.
l Replace the control and tighten screws securely.
CHECKING/ADJUSTING THE VALVE
CLEARANCE
See Figures 23 - 24.
NOTICE
Checking and adjusting valve clear-
ance must be done when the engine is cold.
l Turn the generator off and allow the engine to cool for
30 minutes.
l Place the generator on a level surface in a well-ventilated
area.
l Remove the rocker arm cover and carefully remove the
gasket. If the gasket is torn or damaged, it must be re-
placed.
l Remove the spark plug so the engine can be rotated more
easily.
l Pull the recoil handle to rotate the engine to top dead
center (TDC). Looking through the spark plug hole; the
piston should be at the top (both valves are closed).
l Both rocker arms should be loose at TDC on the com-
pression stroke. If they are not, rotate the engine 360°.
l Insert a feeler gauge between the rocker arm and the
valve stem to measure valve clearance.
Intake Valve
Valve
0.0031 – 0.0047 in
Clearance
(0.08 – 0.12 mm)
Torque
8-12 Nm
l If an adjustment is necessary, loosen the jam nut.
l Slide the appropriate feeler gauge between the rocker
arm and the valve stem.
l Tighten the adjustment screw onto the push rod to obtain
the specified clearance.
NOTE: You should be able to feel the rocker arm touch
the feeler gauge.
l Hold the adjustment screw in place and tighten the nut.
Torque: 106 inch-pound (12 Nm)
l Recheck valve clearance.
l If no further adjustments are needed, perform this proce-
dure on the other valve.
l When finished, install the gasket, rocker arm cover, and
spark plug.
24 | English
FIG. 22
A - Fuel Line
B - Fuel Filter
FIG. 23
A - Rocker Arm Cover
B - Bolt
C - Gasket
Exhaust Valve
FIG. 24
0.0051 – 0.0067 in
(0.13 – 0.17 mm)
8-12 Nm
A - Adjustment Screw
B - Jam Nut
C - Feeler Gauge
D - Rocker Arm
E - Valve Stem
F - Push Rod
B
A
A
B
A
C
D
C
E
A
B
F
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