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Maintenance, How to stop the engine - figure 4 warning, Emissions control – Briggs & Stratton 540000 User Manual

Page 7: Warning, Maintenance chart, Carburetor adjustment, How to replace the spark plug - figure 5, Inspect muffler and spark arrester - figure 6, How to change the oil - figure 7, Remove oil

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4. Move the throttle control (B) to the fast

position. Operate the engine in 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

position.

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.

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.

Unintentional sparking can result in fire or electric shock.
Unintentional start-up can result in entanglement, traumatic amputation,

or laceration.
Fire hazard

WARNING

Before performing adjustments or repairs:

Disconnect the spark plug wire and keep it away from the spark plug.

Use only correct tools.

Do not tamper with governor spring, links or other parts to increase engine speed.

Replacement parts must be the same and installed in the same position as the

original parts.

Do not strike the flywheel with a hammer or hard object because the flywheel may

later shatter during operation.

When testing for spark:

Use approved spark plug tester.

Do not check for spark with spark plug removed.

Maintenance Chart

First 5 Hours

Change oil

Every 8 Hours or Daily

Check engine oil level

Clean area around muffler and controls

Every 100 Hours or Annually

Clean air filter *

Change engine oil and filter

Clean pre-cleaner (if equipped) *

Replace spark plug

Check muffler and spark arrester

Check valve clearance **

Every 400 Hours or Annually

Change air filter

Replace fuel filter

Clean air cooling system *

Clean oil cooler fins *

Every 600 Hours or Annually

Change safety filter (if equipped)

*

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

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.

WARNING

Allow muffler, engine cylinder and fins to cool before touching.

Remove accumulated debris from muffler area and cylinder area.

Install and maintain in working order a spark arrester before using equipment on

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).