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17
SERVICE AND MAINTENANCE
Changing Engine Oil
NOTE: Change the engine oil after the first 5 hours of operation and
once a season or every 50 hours thereafter.
Drain fuel from tank by running engine until the fuel tank is empty. 1.
Be sure fuel fill cap is secure.
Place suitable oil collection container under oil drain plug. 2.
Remove oil drain plug. See Figure 13.3.
Tip engine to drain oil into the container. Used oil must be 4.
disposed of at a proper collection center.
Reinstall the drain plug and tighten it securely. 5.
Refill with the recommended oil and check the oil level. 6. See
Recommended Oil Usage chart. The engine’s oil capacity is 20
ounces.
Reinstall the oil filler cap/dipstick securely.7.
Checking Spark Plug
NOTE: Check the spark plug once a season or every 25 hours of
operation. Change the spark plug once a season or every 100 hours.
To ensure proper engine operation, the spark plug must be properly
gapped and free of deposits.
Remove the spark plug boot and use a spark plug wrench to 1.
remove the plug. See Figure 14.
Visually inspect the spark plug. Discard the spark plug if there is 2.
apparent wear, or if the insulator is cracked or chipped. Clean the
spark plug with a wire brush if it is to be reused.
Figure 13
Oil Drain
Plug
CAUTION
Used oil is a hazardous waste product. Dispose of used oil properly.
Do not discard with household waste. Check with your local authori-
ties or Sears Service Center for safe disposal/recycling facilities.
CAUTION
DO NOT use non detergent oil or 2-stroke engine oil. It could shorten
the engine’s service life.
CAUTION
Thoroughly wash your hands with soap and water as soon as
possible after handling used oil.
-30º -20º -10º 0º
0º 20º 40º-20º
5W-30
0W-30
-40º
Synthetic
-30º -20º -10º 0º
0º 20º 40º-20º
5W-30
0W-30
-40º
Synthetic
Figure 14
Spark Plug
Spark Plug Boot
WARNING
DO NOT check for spark with spark plug removed. DO NOT crank
engine with spark plug removed.
WARNING
If the engine has been running, the muffler will be very hot. Be careful
not to touch the muffler.