Replacement Part List
Westinghouse Portable Power | 27
Figure 33
4.  Clean area around the spark plug.
5.  Using the 13/16” spark plug socket wrench 
provided, remove the spark plug from the cylinder 
head (see Figure 34 below).
Figure 34 – Removing Spark Plug
6.  Place a clean rag over the opening created by the 
removal of the spark plug to make sure no dirt can 
get into the combustion chamber.
• Inspect the spark plug for: 
• Cracked or chipped insulator
• Excessive wear
• Spark plug gap (the acceptable 
limit of 0.027–0.032 in. 
[0.70 – 0.80 mm]) (see Figure 35).
NOTICE
Use only recommended spark plugs when servicing. 
The manufacturer is not responsible for engine 
damage when using spark plugs not recommended 
by the manufacturer.
7.  Install the spark plug by carefully following the 
steps outlined below:
a.  Carefully insert the spark plug back into the 
cylinder head. Hand-thread the spark plug until 
it bottoms out.
b.  Using the 13/16” spark plug socket wrench 
provided, turn the spark plug to ensure it is fully 
seated.
c.  Replace the spark plug boot, making sure the 
boot fully engages the spark plug’s tip.
Recommended Spark Plug Replacement:
AC Delco: 4EXLS
Autolite: 52
Champion: N9YC
Bosch: W7DC
Torch: F7TC
MAINTENANCE 
SPARK PLUG GAP
Figure 35










