14
Spark Plug Boot
Spark Plug
Figure 19
Oil Plug
Figure 18
To change the engine oil:
1. Drain fuel from the tank by running the engine until the fuel
tank is empty. Be sure the fuel cap is secure.
2. Place a suitable oil collection container under the oil drain plug.
3. Remove the oil drain plug.
4. Tip the engine to drain oil into the container. Used oil must
be disposed of at a proper collection center.
5. Reinstall the drain plug and tighten it securely.
6. Refill with the recommended oil and check oil level. See
section “Assembly: Adding Oil” for instructions.
Important! Always thoroughly wash your hands with soap and
water as soon as possible after handling used oil. Dispose of used
oil according to local, state and federal guidelines or laws.
Replacing the Spark Plug
m
WARNING
Do not check for a spark with the spark plug removed.
Do not crank the engine with the spark plug removed.
m
WARNING
After the engine has been running the muffler is very
hot and can cause burns. Allow the muffler to cool
down before performing inspection or maintenance.
m
CAUTION
A loose spark plug can become very hot and can
damage the engine. The spark plug must be tight-
ened securely.
To replace the spark plug:
1. Remove the spark plug boot and use a spark plug wrench
to remove the plug.
2. Visually inspect the spark plug, Discard the spark plug if there
is any apparent wear, or if the insulator is cracked or chipped.
Clean the spark plug with the wire brush if it is to be reused.
3. Measure the plug gap with a feeler gauge. To ensure
proper engine operation, the spark plug must be properly
gapped and free of deposits. Correct as necessary by
bending the side electrode.
SJ_803_MANUAL ENG_R_Layout 1 9/2/10 2:23 PM Page 14
