Westinghouse WP2300 Owner's Manual

 

29

The spark plug must be checked and cleaned after 
every 100 hours of use or 6 months and must be 
replaced after 300 hours of use or every year.

1.  Stop the pressure washer and let it cool for several 

minutes if running.

2.  Move the pressure washer to a fl at, level surface.

3.  

Remove the spark plug boot by fi rmly pulling the 
plastic spark plug boot handle directly away from 
the engine (see Figure 33).

Never apply any side load or move the spark plug 
laterally when removing the spark plug. Applying a 
side load or moving the spark plug laterally may crack 
and damage the spark plug boot.

4.  Clean area around the spark plug.

5.  Remove the spark plug from the cylinder head (see 

Figure 34).

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.

7.  Inspect the spark plug for:

x Cracked or chipped insulator
x Excessive wear
x Spark plug gap (the acceptable limit of 0.024 – 

0.032 in. [0.60 – 0.80 mm]) (see Figure 35).

If the spark plug fails any one of the conditions 
listed above, replace the plug with a Champion 
RN11YC4 plug or equivalent.

Only use the recommended spark plug (Champion 
RN11YC4 or equivalent). Using a non-recommended 
spark plug could result in damage to the engine.

8.  

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 -  

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.