Briggs & Stratton Vanguard 540000 Manuel De L'opérateur page 7

4. Move the throttle control (B) to the fast
position. See the equipment manual for location and operation of the throttle
control.
5. Move the choke control (C), or the combination choke/throttle lever, to the choke
position. See the equipment manual for location and operation of the choke
control.
Note: Do not use the choke to start a warm engine.
6. Turn the electric start switch (D) to the on/start position (Figure 4). See the
equipment manual for the location and operation of the switch.
CAUTION: To extend the life of the starter, use short starting cycles (five seconds
maximum). Wait one minute between starting cycles.
7. As the engine warms up, move the choke control (C) to the run
NOTE: If the engine does not start after three attempts, see the Troubleshooting
section.
How To Stop The Engine - Figure 4
WARNING
Gasoline and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
Do not choke the carburetor to stop engine.
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1. Move the throttle control to the slow position, turn the key switch (D) to the off
position (Figure 4). Remove the key and keep in a safe place out of the reach of
children.
2. After the engine stops, turn the fuel shut-off valve (A), if equipped, to the closed
position.
Maintenance
Use only original equipment replacement parts. Other parts may not perform as
well, may damage the unit, and may result in injury. In addition, use of other parts
may void your warranty.
We recommend that you see any Briggs & Stratton Authorized Dealer for all
maintenance and service of the engine and engine parts.
CAUTION: All the components used to build this engine must remain in place for proper
operation.
Emissions Control
Maintenance, replacement, or repair of the emissions control devices and systems
may be performed by any non-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 Warranty.
WARNING
Unintentional sparking can result in fire or electric shock.
Unintentional start-up can result in entanglement, traumatic amputation,
or laceration.
Fire hazard
Before performing adjustments or repairs:
Disconnect the spark plug wire and keep it away from the spark plug.
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Use only correct tools.
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Do not tamper with governor spring, links or other parts to increase engine speed.
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Replacement parts must be the same and installed in the same position as the
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original parts.
Do not strike the flywheel with a hammer or hard object because the flywheel may
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later shatter during operation.
When testing for spark:
Use approved spark plug tester.
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Do not check for spark with spark plug removed.
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en
position. Operate the engine in the fast
position.
Maintenance Chart
First 5 Hours
Change oil
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Every 8 Hours or Daily
Check engine oil level
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Clean area around muffler and controls
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Every 100 Hours or Annually
Clean air filter *
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Change engine oil and filter
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Clean pre-cleaner (if equipped) *
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Replace spark plug
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Check muffler and spark arrester
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Check valve clearance **
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Every 400 Hours or Annually
Change air filter
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Replace fuel filter
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Clean air cooling system *
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Clean oil cooler fins *
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Every 600 Hours or Annually
Change safety filter (if equipped)
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* In dusty conditions or when airborne debris is present, clean more often.
** Not required unless engine performance problems are noted.
Carburetor Adjustment
Never make adjustments to the carburetor. The carburetor was set at the factory to
operate efficiently under most conditions. However, if adjustments are required, see a
Briggs & Stratton Authorized Dealer for service.
CAUTION: The manufacturer of the equipment on which this engine is installed specifies
the top speed at which the engine will be operated. Do not exceed this speed.
How To Replace The Spark Plug - Figure 5
Check the gap (A, Figure 5) 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.
Inspect Muffler And Spark Arrester - Figure 6
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.
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Remove accumulated debris from muffler area and cylinder area.
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Install and maintain in working order a spark arrester before using equipment on
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forest-covered, grass-covered, brush-covered unimproved land. The state of
California requires this (Section 4442 of the California Public Resources Code).
Other states may have similar laws. Federal laws apply on federal land.
Inspect the muffler (A, Figure 6) for cracks, corrosion, or other damage. Remove the
spark arrester (B), if equipped, and inspect for damage or carbon blockage. If
replacement parts are required, make sure to use only original equipment replacement
parts.
WARNING:
Replacement parts must be the same and installed in the same
position as the original parts or fire could result.
How To Change The Oil - Figure 7
CAUTION: 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 (A) and keep it away
from the spark plug (Figure 7).
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