37
MAINTENANCE
Figure 45 – Spark Plug
A - Gap
b - Ground Electrode
C - Gasket
D - Insulator
E - Terminal
F - Thread
G - Centre Electrode
8. Install the spark plug by carefully following the
steps outlined below:
a -
Carefully insert the spark plug back into the
cylinder head. Hand screw the spark plug
clockwise until it bottoms out (seats).
b -
Use a spark plug socket wrench to finish
tightening the spark plug. If re-installing a used
spark plug, tighten 1/8 to 1/4 of a turn after the
spark plug seats. If installing a new spark plug,
tighten 1/2 turn after the spark plug seats.
c - Replace the spark plug boot, making sure
the boot fully engages onto the spark plug’s
terminal.
sParK arrEstEr
MaintEnanCE
Tools required (not included) – 5 mm flat head
screwdriver, wire brush.
Check and clean the spark arrester after every 100
hours of use or 6 months.
1. Stop the generator and let it cool for several
minutes if it’s been running.
2. Move the generator to a flat, level surface.
3. Using a flat head screwdriver, loosen the spark
arrester band clamp by turning the adjusting screw
anti-clockwise (see Figure 46).
3
1
2
Figure 46 – Spark Arrester Assembly
1 - Spark Arrester
Band Clamp
2 - Spark Arrester
Screen
3 - Muffler
4. Slide the spark arrester band clamp off the spark
arrester screen.
5. Pull the spark arrester screen off the muffler
exhaust pipe.
6. Using a wire brush, remove any dirt and debris
that may have collected on the spark arrester
screen.
7. If the spark arrester screen shows signs of wear
such as rips, tears or large openings, it must be
replaced.
8. Re-install the spark arrester components in the
following order:
a -
Place spark arrester screen over the muffler
exhaust pipe. Push on the screen until it fully
bottoms out.
b -
Place the spark arrester band clamp over
the screen and tighten the adjusting screw
clockwise with a flat head screwdriver.
G
E
b
C
F
D
A
Summary of Contents for WHXC3750
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