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Servicing the Exhaust System
WARNING
During operation, the engine and muffler become hot. If you touch a hot engine,
thermal burns can occur.
Combustible materials, such as leaves, grass and brush, can catch fire.
•
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.
•
Remove debris from the muffler and engine.
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.
WARNING
Replacement parts must be of the same design and installed in the same position as the
original parts. Other parts could result in damage or an injury.
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 engine OFF but warm, disconnect the spark plug wire(s) (D, Figure 8), and
keep it away from the spark plug(s)(E).
2.
Remove the dipstick (A, Figure 9).
3.
Remove the oil drain plug (F, Figure 10). Drain the oil into an approved container.
4.
Install and tighten the oil drain plug (F, Figure 10).
Change the Oil Filter
1.
Drain the oil from the engine. Refer to the Remove Oil section.
2.
Remove the oil filter (H, Figure 11) and discard correctly.
3.
Before you install the new oil filter, lightly lubricate the oil filter gasket with clean oil.
4.
Install the oil filter by hand until the gasket touches the oil filter adapter, then tighten
the oil filter 1/2 to 3/4 turns.
5.
Add oil. Refer to the Add Oil section.
6.
Start and operate the engine. When the engine is warm, do a check for oil leaks.
7.
Stop the engine. Make sure that oil level is at the top of the full indicator on the
dipstick. Refer to the Add Oil section.
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 9). Remove oil from the dipstick with a clean cloth.
2.
Slowly add oil into the engine oil fill (C, Figure 9). Do not overfill. Wait one minute
and then check the oil level.
3.
Install and tighten the dipstick (A, Figure 9).
4.
Remove the dipstick and check the oil level. The correct oil level is at the top of the
full indicator (B, Figure 9) on the dipstick.
5.
Install and tighten the dipstick (A, Figure 9).
8
6.
Connect the spark plug wire(s) (D, Figure 8) to the spark plug(s) (E).
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 service requirements.
Different models will use a foam or a paper filter. Some models could also have an
optional pre-cleaner that can be washed and used again. Compare the illustrations in
this manual with the type installed on your engine and service as follows.
Low Profile Air Filter
1.
Remove the fastener(s) (A, Figure 12).
2.
Remove the cover (B, Figure 12).
3.
Remove the fastener(s) (C, Figure 12) and retainer (D).
4.
Remove the air filter (E, Figure 12).
5.
Remove the pre-cleaner (F, Figure 12), if installed, from the air filter (E).
6.
To loosen unwanted material, lightly tap the air filter (E, Figure 12) on a hard
surface. If the air filter is dirty, replace with a new air filter.
7.
Clean the pre-cleaner (F, Figure 12), if installed, in liquid detergent and water. Make
sure the pre-cleaner is fully dry. Do not lubricate the pre-cleaner.
8.
Assemble the dry pre-cleaner (F, Figure 12), if installed, to the air filter (E).
9.
Install the air filter (E, Figure 12) with the retainer (D) and fastener(s) (C).
10. Install the cover (B, Figure 12) with the fastener(s) (A). Make sure that 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.
•
Before you clean or replace the fuel filter, drain the fuel tank or close the fuel
shut-off valve.
•
If fuel spills, wait until it dries before you start the engine.
•
Replacement parts must be of the same design and installed in the same
position as the original parts. Other parts could result in damage or an injury.
Fuel Filter, if installed
1.
Before you clean or replace the fuel filter (A, Figure 13), drain the fuel tank or close
the fuel shut-off valve. If the fuel tank is not drained, fuel leakage could occur and
cause a fire or explosion.
2.
Use pliers to squeeze tabs (B, Figure 13) on the clamps (C), then move the clamps
away from the fuel filter (A). Twist and pull the fuel lines (D) off of the fuel filter.
3.
Examine the fuel lines (D, Figure 13) for cracks or leaks. Replace if necessary.
4.
Replace the fuel filter (A, Figure 13) with an original equipment replacement filter.
5.
Attach the fuel lines (D, Figure 13) with clamps (C).
Servicing the Cooling System
WARNING
During operation, the engine and muffler become hot. If you touch a hot engine,
thermal burns can occur.
Combustible debris, such as leaves, grass, and brush can catch fire.
•
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.
•
Remove debris from the muffler and engine.
NOTICE
Do not use water to clean the engine. Water could cause contamination of the fuel
system. Use a brush or dry cloth to clean the engine.
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