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Maintenance
Recommended Maintenance Schedule(s)
Maintenance Service
Interval
After the first 25 hours
Before each use or daily
Every 50 hours
Every 100 hours
Every 200 hours
Every 300 hours
Monthly
Disconnecting the Spark Plug
Wire
Before performing any maintenance on the engine, disconnect
the spark plug wire from the spark plug (Figure 16).
Figure 16
1. Spark plug wire
Servicing the Air Cleaner
Service Interval: Before each use or daily—Inspect the air
cleaner elements.
Every 50 hours—Clean the air filter elements. Clean
them more frequently in dusty operating conditions.
Maintenance Procedure
• Change the engine oil.
• Check the engine oil level.
• Clean debris from the air cleaner.
• Inspect the air cleaner elements.
• Clean the air filter elements. Clean them more frequently in dusty operating
conditions.
• Change the engine oil.
• Inspect, clean, and adjust the spark plug; replace it if necessary.
• Replace the spark plug.
• Replace the paper air cleaner element. Replace it more frequently in dusty operating
conditions.
• Check the eccentric oil level.
Every 300 hours/Yearly (whichever comes
first)—Replace the paper air cleaner element. Replace
it more frequently in dusty operating conditions.
Important: Do not operate the engine without the air
filter assembly; extreme engine damage will occur.
1. Set the throttle to slow, stop the engine, and wait for
all moving parts to stop.
2. Disconnect the wire from the spark plug.
3. Remove the nut that secures the cover (Figure 17).
1. Nut
2. Cover
12
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Figure 17
3. Paper element
4. Foam element
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