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Not for reproduction – Briggs & Stratton QUANTUM 120000 User Manual

Page 8

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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.

Disconnect battery at negative terminal (only engines with electric start.)

Use only correct tools.

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

speed.

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.

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

Clean finger guard

Every 25 Hours or Annually

Clean air filter *

Clean pre-cleaner *

Every 50 Hours or Annually

Change engine oil

Check muffler and spark arrester

Annually

Replace air filter

Replace pre-cleaner

Replace spark plug

Replace fuel filter

Clean air cooling system *

*

In dusty conditions or when airborne debris is present, clean more often.

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 any

Briggs & Stratton Authorized Dealer for service.
NOTICE: 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.

Inspect Muffler And Spark Arrester - Figure 1

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.

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 area and cylinder area. Inspect the muffler (I,

Figure 1) for cracks, corrosion, or other damage. Remove the spark arrester (P), 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.

How To Replace The Spark Plug - Figure 10

Check the gap (A, Figure 10) 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.

How To Change The Oil - Figure 1

11 12 13

WARNING

Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.

If you drain the oil from the top oil fill tube, the fuel tank must be empty or fuel

can leak out and result in a fire or explosion.

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

You can drain the oil from the bottom drain hole, the side drain hole, or from the top oil fill

tube.
1. With engine off but still warm, disconnect the spark plug wire (A) and keep it away

from the spark plug (Figure 11).

2. The engine is equipped with a bottom drain (Q, Figure 1) and/or a side drain (R).

Remove the oil drain plug (H). Drain the oil into an approved container.
Note: Any of the oil drain plugs (H) shown may be installed in the engine.

3. After the oil has drained, install and tighten the oil drain plug.
4. If you drain the oil from the top oil fill tube (E), keep the spark plug end of the engine

(F) up (Figure 12). Drain the oil into an approved container.

WARNING:

If you drain the oil from the top oil fill tube, the fuel tank must

be empty or fuel can leak out and result in a fire or explosion. To empty the fuel tank,

run the engine until it stops from lack of fuel.

Add Oil

Place engine level.

Clean the oil fill area of any debris.

See the Specifications section for oil capacity.

1. Remove the dipstick (G) and wipe with a clean cloth (Figure 13).
2. Pour the oil slowly into the engine oil fill (H). Do not overfill. After adding oil, wait

one minute and then check the oil level.

3. Install and tighten the dipstick.
4. Remove the dipstick and check the oil level. It should be at the top of the full indicator

(J) on the dipstick.

5. Install and tighten the dipstick.

How To Service The Air Filter - Figure 15 16

WARNING

Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.

Never start or 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.
Two types of air filter systems are shown, a Standard and a High Capacity. Determine

the type installed on your engine and service as follows.

Not for Reproduction