Westinghouse iGen4000c User Manual page 22

MAINTENANCE
CLEANING/REPLACING THE SPARK PLUG
See Figure 17.
NOTICE
ALWAYS use the Westinghouse OEM
or compatible non-resistor-type spark plug. Use of re-
sistor-type spark plug can result in rough idling, mis-
fire, or may prevent the engine from starting.
Make sure the spark is clean and properly gapped. To clean
or replace your spark plug:
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 Lift the spark plug service door to gain access to the spark
plug area.
l Remove the spark plug boot by firmly pulling the spark
boot directly away from the engine.
l Clean the area around the spark plug.
l Remove the spark plug with the included spark plug socket
wrench.
NOTICE
Never apply any side load or move the
spark plug laterally when removing the spark plug.
l Inspect the spark plug. Replace if electrodes are pitted,
burned, or the insulator is cracked. Only use a recom-
mended replacement plug.
l Measure the spark plug electrode gap with a wire-type
feeler gauge. If necessary, correct the gap by carefully
bending the side electrode.
Spark plug gap: 0.028 - 0.031 in. (0.7 - 0.8 mm)
l Carefully install the spark plug finger tight, then tighten
as additional 3/8 to 1/2 turn with the spark plug wrench.
l Install the spark plug boot and close the spark plug service
door.
CLEANING THE SPARK ARRESTOR
See Figure 18.
Check and clean the spark arrestor according to the figures
specified in the Maintenance Schedule or the engine
manual (if applicable). Failure to clean the spark arrestor
will result in degraded engine performance.
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 two screws securing the spark arrestor
bracket.
22 | English
FIG. 17
A
A - Spark Plug
B - Spark Plug Boot
C - Insulator
D - Electrode
FIG. 18
A - Spark Arrestor
B - Screen
C - Screws
D - Bracket
l Remove the bracket, screen, and spark arrestor from the
generator.
l Gently clean the screen and spark arrestor using a wire
brush.
l Reinstall the spark arrestor, screen, and bracket. Tighten
screws securely.
D
0.028 – 0.031 in.
(0.7 – 0.8 mm)
B
A
C
D
C
B