Spark Plug Maintenance
1.Disconnect spark plug wire from end of plug. Clean out debris from around spark plug.
2.Using a spark plug wrench, remove the spark plug.
3.Inspect the spark plug:
If the electrode is oily, clean it using a clean, dry rag.
If the electrode has deposits on it, polish it using emery paper.
If the white insulator is cracked or chipped, the spark plug needs to be replaced.
4.When installing a new spark plug, adjust the plug’s gap to the specification on the Specification chart. Do not pry against the electrode or the insulator, the spark plug can be damaged.
5.Install the new spark plug or the cleaned spark plug into the engine.
6.Apply a small amount of dielectric grease (not included) to the insulator of the spark plug and attach the wire securely to the spark plug.
Cleaning, Maintenance, and
Lubrication Schedule
Note: This maintenance schedule is intended solely as a general guide. If performance decreases or if engine operates unusually, check systems immediately. The maintenance needs of each engine will differ depending on factors such as duty cycle, temperature, air quality, fuel quality, and other factors.
Note: These procedures are in addition to the regular checks and maintenance explained as part of the regular operation of the engine.
After Initial 20 Operation Hour Period:
a. Change engine oil.
Every 25 Operation Hours Thereafter:
a. Clean/replace air filter element.
b. Inspect/clean spark plug.
Every 50 Operation Hours:
a. Change engine oil.
Every 100 Operation Hours:
a. Replace spark plug.
b. Replace air filter element.
Note: All maintenance procedures scheduled for 25, 50, and 100 operation hours should be performed at least yearly.
Every 300 Operation Hours:
a. Clean fuel tank and carburetor.
b. Clean carbon
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