23.
7. Using a wire brush, remove any dirt and debris that
may have collected on the spark arrestor screen.
8. If the spark arrestor screen shows signs of wear
(rips, tears or large openings in the screen), replace
the spark arrestor screen.
9. Install the spark arrestor components in the
following order:
a. Place spark arrestor screen over the muffler
exhaust pipe. Push on the screen until it fully
bottoms out.
b. Place the spark arrestor band clamp over the
screen and tighten with a flathead screwdriver
10. Replace the discharge gate.
Checking And Adjusting Valve Lash
CAUTION!
Checking and adjusting valve lash must be done
when the engine is cold.
1. Remove the rocker arm cover and carefully remove
the gasket. If the gasket is torn or damaged, it must
be replaced.
2. Remove the spark plug so the engine can be
rotated more easily.
3. Rotate the engine to top dead center (TDC) of the
compression stroke. Looking through the spark
plug hole, the piston should be at the top.
4. Both the rocker arms should be loose at TDC on
the compression stroke. If they are not, rotate the
engine 360°.
5. Insert a feeler gauge between the rocker arm and
the push rod and check for clearance (see Figure
22). See table below for valve lash specifications
1
2
3
4
5
Figure 22
(1) Push Rod, (2) Feeler Gauge Area
(3) Rocker Arm, (4) Jam Nut, (5) Adjusting Nut
Intake Valve
Exhaust Valve
Valve Lash
.0023-.0039in
(.06-.10mm)
.0031-.0048in
(.08-.12mm)
Bolt Torque
8-12N.m
8-12N.m
Standard Valve Lash
6. If an adjustment is required, hold the adjusting nut
and loosen the jam nut.
7. Turn the adjusting nut to obtain the correct valve
lash. When the valve lash is correct, hold the
adjusting nut and tighten the jam nut to 106 in-lb
(12 N•m).
8. Recheck the valve lash after tightening the jam nut.
9. Perform this procedure for both the intake and
exhaust valves.
10. Install the rocker arm cover, gasket and spark
plug.
Cleaning the
Generator
It is important to inspect and clean the generator
before every use.
Clean All Engine Air Inlet and Outlet Ports
- Make sure all engine air inlet and outlet ports are
clean of any dirt and debris to ensure the engine does
not run hot.
Checking Engine Oil
NOTE:
Always maintain proper engine oil level.
Failure to maintain proper engine oil level could result
in severe damage to the engine and/or shorten the life
of the engine.Always use the specified engine oil.
Failure to use the specified engine oil can cause
accelerated wear and/ or shorten the life of the
engine.
Engine oil level should be checked before every use.
1. Always operate or maintain the generator on a flat
surface.
2. Stop engine if running.
3. Let engine sit and cool for several minutes (allow
crankcase pressure to equalize).
4. Remove the engine service panel to access the oil
fill/drain plug.
5. With a damp rag, clean around the oil fill/drain plug.
6. Remove the oil fill/drain plug.
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