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28 OneWASH™ Power Washer
6.16 — SERVICE SPARK PLUG
Changing the spark plug will help your engine to start
easier and run better.
1. Clean area around spark plug.
2. Remove and inspect spark plug (Figure 6-9).
3. Check electrode gap with wire feeler gauge and reset
spark plug gap to recommended gap if necessary
(see Specifications).
4. Replace spark plug if electrodes are pitted, burned or
porcelain is cracked. Use the recommended replace-
ment plug. See Specifications.
5. Install spark plug and tighten firmly.
Figure 6-9. Change the Spark Plug
6.17 — INSPECT MUFFLER AND SPARK
A
RRESTER
Inspect the muffler for cracks, corrosion, or other dam-
age. Remove the spark arrester, if equipped, and inspect
for damage or carbon blockage. If replacement parts are
required, make sure to use only original equipment
replacement parts.
6.17.1 — Remove Spark Arrester Screen
Tools Required: 8mm Box Wrench
1. Remove heat shield from the muffler by loosening
the four (4) Bolts (A) (Figure 6-10).
2. Remove the spark arrester from the muffler by loos-
ening the two (2) Bolts (B) (Figure 6-11).
3. Inspect the spark arrester, replace if torn, perforated
or otherwise damaged (part number 0K1851). DO
NOT USE A DEFECTIVE SCREEN.
4. If screen is not damaged, clean it with a commercial
solvent and replace.
Figure 6-10. Remove Heat Shield
Figure 6-11. Remove Spark Arrester
Contact with muffler area can result in
serious burns. Exhaust heat/gases can
ignite combustibles, structures or dam-
age fuel tank causing a fire.
• DO NOT touch hot parts and AVOID hot exhaust
gases.
• Allow equipment to cool before touching.
• Keep at least 5 feet (152 cm) of clearance on all sides
of power washer including overhead.
A
A
B