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MAINTENANCE
l Turn the fuel selector switch to the FUEL OFF position and
open the fuel valve.
l Clean area around fuel cap and remove the cap slowly.
l Remove the fuel screen filter by slightly compressing it while
removing it from the tank.
l Using a commercially available gasoline hand pump (not includ-
ed), siphon the gasoline from the fuel tank into an approved
gasoline container. DO NOT use an electric pump.
NOTE: The fuel tank can also be drained using the carburetor
drain screw and drain hose as described earlier. Turn the fuel
selector switch to Gasoline and open the fuel valve to allow fuel
to flow from the tank through the carburetor.
REPLACING THE FUEL VALVE
See Figure 37.
Overtime, the fuel filter inside the fuel valve may become dirty or
clogged. To reduce the risk of engine failure, replace the entire fuel
valve including the filter according to the figures specified in the
maintenance schedule or the engine manual (if applicable).
l Turn the generator off and allow the engine to cool for 30 min-
utes.
l Drain the fuel tank as described previously.
l Locate the fuel valve and note the orientation.
NOTE: Place an approved gasoline container beneath the fuel
valve to catch any remaining fuel.
l Using pliers, squeeze the fuel line clip and slide the fuel line
away from the filter.
l Using a 19 mm wrench (not included), loosen and remove the
fuel valve from the tank.
l Thread the new fuel valve onto the fuel tank and tighten securely.
l Install the fuel line onto the new fuel valve.
INSPECTING/ADJUSTING THE VALVE
CLEARANCE
See Figures 38 - 39.
NOTICE
Inspecting and adjusting valve clearance
must be done when the engine is cold.
l Turn the generator off and allow the engine to cool for 30 min-
utes.
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 replaced.
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 compression
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.
FIG. 36
FIG. 37
A
A - Fuel valve
B - Fuel line
C - 19 mm wrench (not included)
Intake Valve
Valve
0.0031 – 0.0047 in
Clearance
(0.08 – 0.12 mm)
Torque
8 – 12 Nm
l If an adjustment is necessary, hold the rocker arm pivot and
loosen the pivot adjusting nut.
l Slide the appropriate feeler gauge between the rocker arm
and the valve stem.
l Turn the rocker arm pivot to obtain the specified clearance.
Hold the rocker arm pivot and re-tighten the pivot adjusting
nut to the specified torque.
Torque: 106 inch-pound (12 Nm)
l Re-inspect valve clearance.
l If no further adjustments are needed, perform this procedure
on the other valve.
l When finished, install the gasket, rocker arm cover, and spark
plug.
B
Exhaust Valve
0.0051 – 0.0067 in
(0.13 – 0.17 mm)
8 • 12 Nm
English | 31
C
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