It is a violation of California Public Resource Code, Section 4442, to use or operate the
engine on any forest-covered, brush-covered, or grass-covered land unless the exhaust
system is equipped with a spark arrester, as defined in section 4442, maintained in
effective working order. Other states or federal jurisdictions may have similar laws;
reference Federal Regulation 36 CFR Part 261.52. Contact the original equipment
manufacturer, retailer, or dealer to obtain a spark arrester designed for the exhaust
system installed on this engine.
Remove debris from the muffler and cylinder area. Inspect the muffler for cracks,
corrosion, or other damage. Remove the deflector or the spark arrester, if equipped, and
inspect for damage or carbon blockage. If damage is found, install the replacement parts
before you operate the equipment.
Change Engine Oil
WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in
burns or death.
During operation, the engine and muffler become hot. If you touch a hot engine,
thermal burns can occur.
•
If you drain the oil from the top oil fill tube, the fuel tank must be empty. If it is not
empty, fuel leakage can occur and cause a fire or an explosion.
•
Before you touch the engine or muffler, stop the engine and wait two (2)
minutes. Make sure that the engine and muffler are safe to touch.
Used oil is a hazardous waste product and must be discarded of correctly. Do not
discard with household waste. Contact your local authorities, service center, or dealer
for safe disposal or recycling facilities.
Remove Oil
1.
With the engine OFF but warm, disconnect the spark plug wire (D, Figure 10), and
keep it away from the spark plug (E).
2.
Remove the oil drain plug (F, Figure 11). Drain the oil into an approved container.
NOTE: All of the oil drain plugs (G, Figure 11) can be installed in the engine.
3.
Install and tighten the oil drain plug (F, Figure 11).
Add Oil
•
Make sure the engine is level.
•
Clean the oil fill area of all debris.
•
Refer to the Specifications section for oil capacity.
1.
Remove the dipstick (A, Figure 12). Remove oil from the dipstick with a clean cloth.
2.
Slowly add oil into the engine oil fill (C, Figure 12) Do not overfill. Wait one minute
and then check the oil level.
3.
Install and tighten the dipstick (A, Figure 12).
4.
Remove the dipstick and check the oil level. The correct oil level is at the top of the
full indicator (B, Figure 12) on the dipstick.
5.
Install and tighten the dipstick (A, Figure 12).
6.
Connect the spark plug wire(s) to the spark plug(s). See Remove Oil section.
Servicing the Air Filter
WARNING
Fuel vapors are flammable and explosive. Fire or explosion could result in burns
or death.
•
Do not start and operate the engine with the air cleaner assembly (if equipped)
or the air filter (if equipped) removed.
NOTICE
Do not use pressurized air or solvents to clean the filter. Pressurized air could result in
damage to the filter and solvents will dissolve the filter.
See the Maintenance Schedule for servicing requirements.
Different models will use a foam or a paper filter. Some models could also have an
optional pre-cleaner that can be cleaned and used again. Compare the illustrations in
this manual with the type installed on your engine and service as follows.
Foam Air Filter
1.
Open the fastener(s) (A, Figure 13).
2.
Open the cover (B, Figure 13). Remove the retainer (D, Figure ) and the foam
element (C).
3.
Clean the foam element (C, Figure 13) in liquid detergent and water. Squeeze dry
the foam element in a clean cloth.
4.
Soak the foam element (C, Figure 13) with clean engine oil. To remove remaining
oil, squeeze the foam element in a clean cloth.
8
5.
Install the foam element (C, Figure 13) and the retainer (D).
6.
Install the cover (B, Figure 13) and attach with the fastener(s) (A).
Foam Air Filter
1.
Open the fastener(s) (A, Figure 14).
2.
Open the cover (B, Figure 14) and remove the foam element (C).
3.
Clean the foam element (C, Figure 14) in liquid detergent and water. Squeeze dry
the foam element in a clean cloth.
4.
Soak the foam element (C, Figure 14) with clean engine oil. To remove remaining
oil, squeeze the foam element in a clean cloth.
5.
Install the foam element (C, Figure 14).
6.
Install the cover (B, Figure 14) and close the fastener(s) (A).
Paper Air Filter
1.
Loosen the fastener(s) (D, Figure 15).
2.
Remove the cover (A, Figure 15).
3.
Remove the pre-cleaner (C, Figure 15), if equipped, and the filter (B).
4.
To loosen debris, lightly tap the filter (B, Figure 15) on a hard surface. If the filter is
dirty, replace it with a new filter.
5.
Clean the pre-cleaner (C, Figure 15), if equipped, in liquid detergent and water. Let
the pre-cleaner fully air dry. DO NOT lubricate the pre-cleaner.
6.
Install the dry pre-cleaner (C, Figure 15), if equipped, and the filter (B).
7.
Install the cover (A, Figure 15) and attach with fastener(s) (D). Make sure that the
fastener(s) is tight.
Paper Air Filter
1.
Loosen the fastener(s) (A, Figure 16).
2.
Remove the cover (B, Figure 16).
3.
Remove the fastener (E, Figure 16).
4.
Carefully remove the pre-cleaner (D, Figure 16) and the filter (C) from the air filter
base (F).
5.
To loosen debris, lightly tap the filter (C, Figure 16) on a hard surface. If the filter is
dirty, replace it with a new filter.
6.
Remove the pre-cleaner (D, Figure 16) from the filter (C).
7.
Clean the pre-cleaner (D, Figure 16) in liquid detergent and water. Let the pre-
cleaner fully air dry. Do not lubricate the pre-cleaner.
8.
Assemble the dry pre-cleaner (D, Figure 16) to the filter (C).
9.
Install the filter (C, Figure 16) and the pre-cleaner (D) to air filter base (F) and onto
the stud (G). Make sure the filter is correctly assembled to the air filter base with a
fastener (E).
10. Install the cover (B, Figure 16) with the fastener(s) (A). Make sure the fastener(s) is
tight.
Servicing the Fuel System
WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in
burns or death.
•
Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition
sources.
•
Frequently examine the fuel lines, fuel tank, fuel cap, and connections for cracks
or leaks. Replace damaged parts.
•
If fuel spills, wait until it dries before you start the engine.
Fuel Filter, if installed
1.
Before you replace the fuel filter (A, Figure 17), drain the fuel tank or close the fuel
shut-off valve. If the fuel tank is not drained, fuel leakage can occur and cause a fire
or explosion.
2.
Squeeze the tabs (B, Figure 17) on the clamps (C) with pliers. Move the clamps
away from the fuel filter (A).
3.
Twist and pull the fuel lines (D, Figure 17) off of the fuel filter.
4.
Examine the fuel lines (D, Figure 17) for cracks or leaks. If it is necessary, replace
the fuel lines.
5.
Replace the fuel filter (A, Figure 17).
6.
Attach the fuel lines (D, Figure 17) with clamps (C).
Fuel Strainer, if installed
1.
Remove the fuel cap (A, Figure 18).
2.
Remove the fuel strainer (B, Figure 18).