Inspecting, Replacing or Cleaning the
Spark Plug
The spark plug should be checked after every 100
hours of operation or every six months.
To replace or clean the spark plug:
1. Disconnect the spark plug wire by pulling it off the
spark plug.
2. Using provided spark plug wrench, remove the
spark plug by turning it counter-clockwise. If there is a
carbon sediment build-up, remove it. If there is too
much carbon sediment, replace the spark plug.
3. Check the gap with a wire gauge. If necessary,
reset the gap to 0.7-0.8 mm. Install and tighten the
spark plug to the recommended torque–180 lb-in (20
Nm).
4. Reinstall the spark plug wire and protection cage in
reverse order.
NOTE:
In some areas, local law requires using a
resistor spark plug to suppress ignition signals. If this
engine was originally equipped with a resistor spark
plug, use the same type for replacement
7.3 Cleaning the Carburetor
1. Screw down the bolt on the bottom of carburetor
with wrench.
2. Push the float up four to five times, then clean
sediment cup with gas.
NOTE:
Put the sediment cup back. Be careful not to
miss the O ring.
7.4 Cleaning the spray tips
Clean the spray tip by carefully inserting the provided
spray tip cleaner, or a thin, sharp object (e.g., paper
clip) into the tip to remove deposits.
WARNING
Clogging of the spray tip increases the water
pressure and might damage the pump unit .
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