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MAINTENANCE
Changing Oil.
Drain the used oil when the engine is warm.Warm oil drains quickly and completely.
1. Place a suitable container below the engine to catch the used oil, then remove the oil ller cap/
dipstick, oil drain plug and washer.
2. Allow the used oil to drain completely, then reinstall the oil drain plug and new washer, and
tighten the oil drain plug securely.
Please dispose of used motor oil in a responsible manner. We suggest you take used oil in a
sealed container to your local recycling center or service station for reclamation. Do not throw
it in the trash, pour it on the ground, or down a drain.
3. With the engine in a level position, ll to the upper limit mark (bottom edge of the oil ll hole) on
the dipstick with the recommended oil .
Service Air Cleaner
Your engine will not run properly and may be damaged if you run it with a dirty air cleaner. Service
more often if operating under dirty or dusty conditions. Replacements are available at your local
Yard Force service center.
To service the air cleaner, follow these steps:
WARNING
Never run the engine without the air lter element installed:
1. With engine off, loosen the fastener that holds the cover.
2. Open the cover and remove the lter.
3. To loosen debris, gently tap the lter on a hard surface. If the lter is excessively dirty, replace
with a new lter.
4. Install the lter.
5. Install the cover tabs into the slots.
6. Close the cover and secure with the fastener.
Service Spark Plug
Changing the spark plug will help your engine to start easier and run better. Disconnect spark plug
wire from spark plug and keep wire away from spark plug while servicing engine.
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Replace spark plug if electrodes are pitted, burned or porcelain is cracked.
4. For replacement use the standard resistor spark plug.
5. Check electrode gap with wire feeler gauge and set gap at 0.70-0.80mm(0.028-0.031in), if
necessary.
6. Install spark plug, tighten securely.
NOTE: If you need help to nd replacement spark plugs, call the Yard Force help line 1-866-902-
9690.
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