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Emissions Control Service
For maintenance, replacement, or repair of emissions control devices and
systems, contact a qualified off-road engine repair establishment or service
technician. However, for "no charge" emissions control service, the work must be done
by a factory authorized dealer. Refer to the Emissions Control Statements.
Maintenance Schedule
Intervals of 8 Hours or Daily
•
Check the engine oil level.
•
Clean the area around the muffler and controls.
Intervals of 100 Hours or Annually
•
Clean or replace the air filter
•
Clean the pre-cleaner (if installed)
•
Change the engine oil and filter.
•
Replace the oil filter (if installed).
•
Replace the spark plugs.
•
Check the muffler and spark arrester (if installed).
•
Service the exhaust system.
Intervals of 250 Hours or Annually
•
Check the valve clearance. Adjust if necessary.
Intervals of 400 Hours or Annually
•
2
Change the air filter
.
•
Replace the fuel filter, if installed.
•
Service the air cooling system
•
1
Clean the oil cooler fins
.
Intervals of 600 Hours
•
Replace the safety filter, if installed.
1
Clean more frequently in dusty conditions or when many particles are in the air..
2
Every third air filter change, replace the inner safety filter (if installed).
Electronic Fuel Injection (EFI) System
The EFI System monitors engine temperature, engine speed, and battery voltage for
engine start-up and warm-up. There are no adjustments on the system. If start-up or
operation problems occur, contact a Briggs & Stratton Authorized Service Dealer.
NOTICE Make sure to obey the steps that follow or damage to the EFI system could
occur.
•
DO NOT start the engine if the battery cables are loose.
•
Turn the key to the OFF position before you disconnect, remove, and / or install
the battery.
•
DO NOT use a battery charger to start the engine.
•
DO NOT disconnect the battery cables during engine operation.
•
When you disconnect the battery cables, first connect the positive (+) cable, and
then connect the negative (-) cable to the battery.
•
When you charge the battery, turn the ignition switch to the OFF position, and
disconnect the negative (-) battery cable from the battery.
•
DO NOT spray water directly on the Electronic Control Module.
Electronic Fuel Management System
The Electronic Fuel Management System monitors engine temperature, engine speed,
and battery voltage to adjust the choke during engine start-up and warm-up. There
are no adjustments on the system. If start-up or operation problems occur, speak to
a Briggs & Stratton Authorized Service Dealer.
NOTICE Make sure that you follow these rules or the Electronic Fuel Management
System could be damaged.
•
DO NOT start the engine if the battery cables are loose.
•
Before you connect the jump start cables, or disconnect or reconnect the battery
cables, turn the ignition switch to the OFF position. When you charge the
battery, turn the ignition switch to the OFF position.
•
When you disconnect the battery cables from the battery, disconnect the
negative (- ) cable, and then disconnect the positive (+) cable to the battery.
When you connect the battery cables to the battery, connect the positive (+)
cable, and then the negative (-) cable to the battery.
•
DO NOT use a battery charger to start the engine.
•
DO NOT disconnect the battery cables during engine operation.
1, 2
.
1
1
.
•
DO NOT spray water directly on the Electronic Control Unit.
Carburetor and Engine Speed
Do not make adjustments to the carburetor, governor spring, linkages, or other parts
to adjust the engine speed. If adjustments are necessary, contact a Briggs & Stratton
Authorized Service Dealer for servicing.
NOTICE
The equipment manufacturer specifies the maximum speed for the engine as installed
on the equipment. Do not exceed this speed. If you are not sure 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 correct operation
of the equipment, the engine speed should only be adjusted by a qualified service
technician.
Servicing the Spark Plug
Check the spark plug gap (A, Figure 12) with a wire gauge (B). If necessary, set the
spark plug gap. Install and tighten the spark plug to the correct torque. For gap and
torque specifications, refer to the Specifications section.
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.
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(s) (D, Figure 13),
and keep it away from the spark plugs (E).
2.
Remove the dipstick (A, Figure 14).
Oil Drain Plug, if installed
1.
Remove the oil drain plug (F, Figure 15). Drain the oil into an approved container.
NOTE: The oil drain plugs (G, Figure 15) can be installed in the engine.
2.
After the oil has drained, install and tighten the oil drain plug (F, Figure 15).
Quick Oil Drain, if installed
1.
Disconnect the quick oil drain hose (H, Figure 16) from the side of the engine.
2.
Turn and remove the oil drain cap (I, Figure 16). Carefully lower the quick oil drain
(H) into an approved container (J).
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