Ex-Power DEFENDER – Operation and Maintenance Manual
Novatio Engineering Confidential Document
5-8
9.
Make sure the spark plug sealing washer is in good condition, and thread the spark plug
back into the engine by hand to prevent cross-threading.
10.
After the spark plug is seated, tighten with a spark plug wrench to compress the sealing
washer.
If reinstalling a used spark plug, tighten 1/8-1/4 turn after the spark plug seats.
If installing a new spark plug, tighten 1/2 turn after the spark plug seats.
A loose spark plug can overheat and damage the engine. Over-tightening spark
plug can damage threads in the cylinder head.
11.
Reinstall spark plug cap on spark plug securely.
12.
Reinstall spark plug maintenance cover.
5.6
Servicing Spark Arrestor (in Muffler)
The spark arrester must be serviced every 100 hours to keep it functioning as designed.
If the engine has been running, the muffler will be very hot. Allow muffler to
cool before servicing spark arrester.
Procedure for Removing, Cleaning, and Replacing Spark Arrestor
1.
Remove the four 5 mm screws, and remove muffler protector (cover).
2.
Disconnect the wiring connector that goes to the engine temperature vent control.
Figure 5-10: Removing Muffler Protector Cover
WARNING
CAUTION
DISCONNECT WIRING
CONNECTOR FROM ENGINE
TEMPERATURE VENT
CONTROL
Summary of Contents for Ex-Power DEFENDER
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