Craftsman 247.25000 Operator's Manual page 25

3. Measure the plug gap with a feeler gauge. Correct as necessary
by bending side electrode. See Fig. 29. The gap should be set to
between 0.024-0.031 in.
Electrode
0.024-0.031 in.
4. Check that the spark plug washer is in good condition and thread
the spark plug in by hand to prevent cross-threading.
5. After the spark plug is seated, tighten with a spark plug wrench to
compress the washer.
NOTE: When installing a new spark plug, tighten 1/2 turn after
the spark plug seats to compress the washer. When reinstalling a
used spark plug, tighten 1/8-1/4 turn after the spark plug seats to
compress the washer.
IMPORTANT: The spark plug must be securely tightened. An
improperly tightened spark plug can become very hot and may
damage the engine.
Fuel Filter Service
WARNING
Gasoline and its vapors are extremely flammable and explosive. Fire
or explosion can cause severe burns or death.
• Keep gasoline away from sparks, open flames, pilot lights, heat,
and other ignition sources.
• Check fuel lines, tank, cap, and fittings frequently for cracks or
leaks. Replace if necessary.
• Before replacing the fuel filter, drain the fuel tank as in To Drain
the Fuel.
• Do not drain fuel when the engine is hot. Allow the engine
adequate time to cool. Drain fuel into an approved container
outdoors, away from open flame.
• Drain any large volume of fuel from the tank by disconnecting the
fuel line from the in-line fuel filter near the engine.
• Remove the fuel line from the ln-line side (side towards the fuel
tank) of the fuel filter.
• Replacement parts must be the same and installed in the same
position as the original parts.
• If fuel spills, wait until it evaporates before starting engine.
• Before replacing the fuel filter, drain the fuel tank. Otherwise, fuel
can leak out and cause a fire or explosion.
SERVICE AND MAINTENANCE
Figure 29
To Drain The Fuel:
1. Locate the fuel filter, which is routed on the left side of the engine
between the fuel tank and the carburetor, and may be attached to
the engine with a tie strap. Cut the tie strap, if present, then pinch
the in-line clamp on the fuel filter with a pair of pliers, slide the
clamp up the fuel line. Pull the fuel line free from the filter and place
the open end of the line into an approved container to drain the fuel.
To Change The Fuel Filter:
2. Use pliers to squeeze the tabs on the other clamp (the out-line
side of the fuel filter), and slide the clamp away from the fuel filter.
Twist and pull the fuel line off of the fuel filter. See Fig. 30.
3. Check the fuel lines for cracks or leaks. Replace if necessary.
4. Replace the fuel filter with an original equipment replacement filter.
Call 1-800-4-MY-HOME® to purchase the original equipment
replacement filter.
5. Secure the fuel lines with the clamps.
The fuel filter cannot be cleaned and should be replaced every 100
operating hours; more often if run with old gasoline.
Fuel Line
Clean Engine
If the engine has been running, allow it to cool for at least half an hour
before cleaning. Periodically remove dirt build-up from engine. Clean the
engine cooling fins every 25 hours. Clean with a brush or compressed
air.
IMPORTANT: Do not spray engine with water to clean because wa-
ter could contaminate fuel. Using a garden hose or pressure washing
equipment can also force water into the air cleaner or muffler opening.
Water in the air cleaner will soak the paper element, and water that
passes through the element or muffler can enter the cylinder, causing
damage.
Accumulation of debris around muffler could cause a fire. Inspect and
clean before every use.
25
Fuel Filter
Tab
Figure 30
WARNING
Clamp