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Emissions Control Service
Maintenance, replacement, or repair of the emissions control devices and systems
may be performed by any off-road engine repair establishment or individual. However,
to obtain "no charge" emissions control service, the work must be performed by a factory
authorized dealer. See the Emissions Control Statements.
Maintenance Schedule
First 5 Hours
•
Change oil
Every 8 Hours or Daily
•
Check engine oil level
•
Clean area around muffler and controls
•
Clean air intake grille
Every 25 Hours or Annually
•
1
Clean air filter
•
Clean pre-cleaner
Every 50 Hours or Annually
•
Change engine oil
•
Service exhaust system
Annually
•
Replace spark plug
•
Replace air filter
•
Replace pre-cleaner
•
1
Service cooling system
1
In dusty conditions or when airborne debris is present, clean more often.
Carburetor and Engine Speed
Never make adjustments to the carburetor or engine speed. The carburetor was set at the
factory to operate efficiently under most conditions. Do not tamper with the governor spring,
linkages, or other parts to change the engine speed. If any adjustments are required contact
a Briggs & Stratton Authorized Service Dealer for service.
NOTICE
The equipment manufacturer specifies the maximum speed for the engine
as installed on the equipment. Do not exceed this speed. If you are unsure what the
equipment maximum speed is, or what the engine speed is set to from the factory,
contact a Briggs & Stratton Authorized Service Dealer for assistance. For safe and
proper operation of the equipment, the engine speed should be adjusted only by a
qualified service technician.
Service Spark Plug
See Figure: 8
Check the gap (A, Figure 8) with a wire gauge (B). If necessary, reset the gap. Install and
tighten the spark plug to the recommended torque. For gap setting or torque, see the
Specifications section.
NOTE: In some areas, local law requires using a resistor spark plug to suppress ignition
signals. If this engine was originally equipped with a resistor spark plug, use the same type
for replacement.
Service Exhaust System
WARNING
Running engines produce heat. Engine parts, especially muffler, become extremely
hot.
Severe thermal burns can occur on contact.
Combustible debris, such as leaves, grass, brush, etc. can catch fire.
•
Allow muffler, engine cylinder and fins to cool before touching.
•
Remove accumulated debris from muffler area and cylinder area.
8
•
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. Contact the original equipment manufacturer, retailer, or dealer to obtain
a spark arrester designed for the exhaust system installed on this engine.
Remove accumulated debris from 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 replacement parts before
operating.
WARNING
Replacement parts must be of the same design and installed in the same position as
the original parts. Other parts may not perform as well, may damage the unit, and may
result in injury.
Change Engine Oil
See Figure: 9, 10
Used oil is a hazardous waste product and must be disposed of properly. Do not discard
with household waste. Check with your local authorities, service center, or dealer for safe
disposal/recycling facilities.
Remove Oil
1.
With engine off but still warm, disconnect the spark plug wire (D, Figure 9) and keep
it away from the spark plug (E).
2.
Remove the dipstick (A, Figure 10).
3.
Remove the oil drain plug (F, Figure 10). Drain the oil into an approved container.
NOTE: Various oil drain plugs (G, Figure 10) are installed in the engine.
4.
After the oil has drained, install and tighten the oil drain plug (F, Figure 10).
Add Oil
•
Make sure the engine is level.
•
Clean the oil fill area of any debris.
•
See the Specifications section for oil capacity.
1.
Remove the dipstick (A, Figure 10) and wipe with a clean cloth.
2.
Slowly pour oil into the engine oil fill (C, Figure 10). Fill to point of overflowing.
3.
Install the dipstick (A, Figure 10). Do not turn or tighten.
4.
Remove the dipstick and check the oil level. Correct oil level is at the top of the full
indicator (B, Figure 10) on the dipstick.
5.
Reinstall and tighten the dipstick (A, Figure 10).
6.
Connect the spark plug wire (D, Figure 9) to the spark plug (E).
Service Air Filter
See Figure: 11, 12, 13, 14
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
•
Never start and run 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 can
damage the filter and solvents will dissolve the filter.
See the Maintenance Schedule for service requirements.
Various models use either a foam or a paper filter. Some models may also have an optional
pre-cleaner that can be washed and reused. 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 11).
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