Briggs & Stratton 120000 User manual

Operator’s Manual

Quick Start Guide

on page 4

BRIGGSandSTRATTON.com

ECopyright Briggs & Stratton Corporation

Milwaukee, Wisconsin 53201 U.S.A.

Form No. 277039-9/06

Printed in U.S.A.

Model 120000 Quantum 600 Series

625 Series

650 Series

675 Series

Safety References

The safety alert symbol is used to identify safety

information about hazards that can result in personal

injury. A signal word (DANGER, WARNING, or

CAUTION) is used with the alert symbol to indicate the

likelihood and the potential severity of injury. In addition,

a hazard symbol may be used to represent the type of

hazard.

DANGER indicates a hazard which, if not

avoided, will result in death or serious

injury.

WARNING indicates a hazard which, if not

avoided, could result in death or serious

injury.

CAUTION indicates a hazard which, if not

avoided, might result in minor or moderate

injury.

CAUTION,when used without the alert

symbol, indicates a situation that could result

in damage to the engine.

This manual contains safety

information to make you aware of

the hazards and risks associated with engines.

Because Briggs & Stratton does not necessarily

know what equipment this engine will power, it is

important that you read the instructions and the

instructions for the equipment this engine powers.

Table of Contents

Safety 2. . . . . . . . . . . . . . . . . . . . . . . . . . .

Features 3. . . . . . . . . . . . . . . . . . . . . . . . . .

QuickStart 4. . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 6. . . . . . . . . . . . . . . . . .

READYSTARTE7. . . . . . . . . . . . . . . . . . .

Starting 8. . . . . . . . . . . . . . . . . . . . . . . . . .

Operating & Stopping 9. . . . . . . . . . . . .

Oil 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuel 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fresh StartEFuel Cap 12. . . . . . . . . . . .

Specifications 13. . . . . . . . . . . . . . . . . . .

Maintenance 14. . . . . . . . . . . . . . . . . . . . .

Storage & Service 17. . . . . . . . . . . . . . . .

Warranty Information 18. . . . . . . . . . . . .

SYMBOLS ASSOCIATED

WITH THIS ENGINE:

Explosion

Toxic F u me s

Moving Parts

Shock

Hot Surface

Kickback

Fire

On Off

Fuel Shutoff

Read

Operating

Manual

Fuel

Choke

Oil

Run

Stop

Slow Fast

Hazardous

Chemical

WARNING

The engine exhaust from this product contains

chemicals known to the State of California to cause

cancer, birth defects, or other reproductive harm.

WARNING

Briggs & Stratton does not approve or authorize

the use of these engines on 3-wheel All Terrain

Vehicles (ATVs), motor bikes, fun/recreational

go-karts, aircraft products or vehicles intended for

use in competitive events. Use of these engines in

such applications could result in property damage,

serious injury (including paralysis), or even death.

This engine is shipped from Briggs & Stratton

without oil. If you start the engine without oil, the

engine will be damaged beyond repair and will

not be covered under warranty.

CAUTION

Know Your Engine

Back

view

Front

view

Primer

Spark plug

Choke

(if equipped)

Muffler

Oil cap &

Oil dipstick

Fuel fill

Rewind/Starter

handle

Air cleaner

Speed

control lever

Side oil drain plug

(if equipped)

See page 10 for details.

HOW?

Unscrew and remove oil cap.

Pour in oil. Replace cap.

WHAT KIND?

High quality SAE 30 motor oil.

HOW MUCH?

To FULL line on dipstick.

Engine holds about 20 oz. (0.61l).

SPECIAL CONCERNS?

Do not overfill.

Do not tip engine.

See page 12 for details.

WARNING

Starting engine creates sparking.

Gasoline and its vapors are

extremely flammable and

explosive. Fire or explosion can

cause severe burns or death.

If fuel spills, wait until it

evaporates before starting

engine.

DO NOT use pressurized starting

fluids.

HOW?

Remove gas cap. Pour in gas. Replace cap.

WHAT KIND?

HOW MUCH?

Fill to one inch below top of fuel fill neck.

SPECIAL CONCERNS?

Fuel equipment outdoors. If fuel spills, wait

until it evaporates before starting engine.

Unleaded, 85 octane or higher.

FULL

ADD OIL

WIPE DIPSTICK.

REPLACE DIPSTICK

AND TIGHTEN CAP.

REMOVE DIPSTICK

TO READ LEVEL.

ADD GAS

23 4

This manual contains safety information to make you aware of the hazards and risks

associated with engines. Read the Operating Manual before starting your engine.

432

Rapid retraction of starter cord

(kickback) will pull hand and arm

toward engine faster than you can

let go. To avoid kickback, slowly

pull the cord until you feel

resistance, then pull rapidly.

Broken bones, fractures, bruises or

sprains could result.

Rotating parts can contact or

entangle hands, feet, hair, clothing,

or accessories.

Traumatic amputation or severe

laceration can result.

For complete starting instructions

see page 8.

HOW?

Locate primer bulb. Press with finger. Wait two

seconds between each press.

HOW MANY TIMES?

Press 5times the FIRST TIME you start engine.

For all future starts, press 3 times.

SPECIAL CONCERNS?

Pressing primer too many times can flood

engine with gas. A flooded engine will not start.

See Troubleshooting section.

HOW?

Stand behind equipment.

Close bail, or operator control bar, on

equipment with this feature. If you do not keep

bail held against equipment handle, engine will

not start.

Slowly pull cord until you feel resistance, then

pull quickly.

SPECIAL CONCERNS?

To Stop Engine −

Let go of bail, or operator control bar, which

activates brake and stops engine from running.

WARNING

PUSH PRIMER

1 2 34

PULL STARTER HANDLE

If ReadyStart™go to step 4.

If electric start equipped see page 8.

Need assistance? 1-800-233-3723

(USA and Canada ONLY, Pre-recorded message.)

www.briggsandstratton.com

If speed control equipped, start in FAST position.

Also, see warning at right.

2 3

Starter Handle will not pull.

•Ensure all external equipment/engine loads are removed

before starting engine. Direct coupled equipment

components must be securely attached such as, but not

limited to, blades, impellors, pulleys, sprockets, etc.

WARNING

Troubleshooting

Engine will not start.

•Drain excess oil from engine to bring level to

FULL mark on dipstick.

•Check air cleaner filter for oil saturation.

If saturated, clean or replace filter.

rOil Level is OVER FULL

mark on dipstick. DO NOT OVERFILL OIL.

Overfilling may cause

smoking, hard starting, spark

plug fouling or oil saturation of

air filter.

CAUTION

rOut of Fuel

rEngine Flooded

rSpark Plug Fouling

•Add gasoline.

•Prime engine.

•Set choke (if equipped) to OPEN/RUN

position, place throttle (if equipped) in FAST

and continue to pull starter handle.

•Remove spark plug. Clean, check gap,

replace. See Maintenance section.

WARNING

•Ensure fuel cap, and air

cleaner are in place

before starting engine.

•Before refueling −turn

engine OFF and let

engine cool at least 2

minutes before

removing gas cap.

•Check fuel lines, tank,

cap, and fittings for

cracks or leaks.

Replace if necessary.

•Do not crank engine

with spark plug

removed.

Engine is Smoking or Running Rough.

•Check for fouled spark plug.

•Check air cleaner filter for oil saturation.

If saturated, clean or replace filter.

If engine is tipped to transport

equipment, to remove debris, to

drain oil, etc., keep the spark

plug side of engine up.

CAUTION

rEngine may have been

tipped during transport.

KEEP SPARK PLUG

rThe bail, operator control bar, is not

engaged which releases the brake from

the flywheel allowing the engine to turn

over.

rPlace equipment on flat level surface.

ReadyStartEInstructions

1. Check oil level. Ensure level is at FULL mark on

dipstick. Use a high quality motor oil. Check the oil

recommendations for the correct oil type for

expected starting temperature.

2. Move speed control to FAST, if equipped. Operate

engine in FAST position.

3. Close bail, operator control bar on equipment with

this feature.

4. Start your engine. See options below:

Rewind Start

•Grasp rope handle. Pull slowly until resistance is

felt, then pull rapidly to start engine and avoid

kickback.

WARNING

Electric Start

•Insert key and turn to START.

•Allow engine to warm up.

Go to Operating Engine on page 9.

•Make sure spark plug, muffler, fuel

cap and air cleaner are in place.

•Do not crank engine with spark plug

removed.

•DO NOT start engine if there is a

natural or LP gas leak in area.

•If there is natural or LP gas leakage in

area, do not start engine.

•Do not use pressurized starting fluids

because vapors are flammable.

WARNING

•Start and run engine outdoors.

•Do not start or run engine in

enclosed area, even if doors or

windows are open.

WARNING

Rapid retraction of starter cord

(kickback) will pull hand and arm

toward engine faster than you can

let go. To avoid kickback, slowly pull

the cord until you feel resistance,

then pull rapidly.

Broken bones, fractures, bruises

or sprains could result.

Rotating parts can contact or

entangle hands, feet, hair,

clothing, or accessories.

Traumatic amputation or severe

laceration can result.

WARNING

To prolong starter life use short starting cycles

(5 seconds maximum, then wait one minute).

Follow equipment manufacturer’s

recommendations for charging battery.

CAUTION

Starting Instructions

1. Check oil level. Ensure level is at FULL mark on

dipstick. Use a high quality motor oil. Check the oil

recommendations for the correct oil type for

expected starting temperature.

2. Open fuel shut-off valve1/4 turn, if equipped.

3. Firmly push primer bulb 3 times, if equipped.

4. Move speed control to FAST, if equipped. Operate

engine in FAST position.

5. Close bail, operator control bar on equipment with

this feature.

6. Start your engine. See options below:

Rewind Start

•Grasp rope handle. Pull slowly until resistance is

felt, then pull rapidly to start engine and avoid

kickback.

WARNING

Electric Start

•Insert key and turn to START.

•Allow engine to warm up.

•Make sure spark plug, muffler, fuel

cap and air cleaner are in place.

•Do not crank engine with spark plug

removed.

•DO NOT start engine if there is a

natural or LP gas leak in area.

•If there is natural or LP gas leakage in

area, do not start engine.

•Do not use pressurized starting fluids

because vapors are flammable.

WARNING

•Start and run engine outdoors.

•Do not start or run engine in

enclosed area, even if doors or

windows are open.

WARNING

Rapid retraction of starter cord

(kickback) will pull hand and arm

toward engine faster than you can

let go. To avoid kickback, slowly pull

the cord until you feel resistance,

then pull rapidly.

Broken bones, fractures, bruises

or sprains could result.

Rotating parts can contact or

entangle hands, feet, hair,

clothing, or accessories.

Traumatic amputation or severe

laceration can result.

WARNING

To prolong starter life use short starting cycles

(5 seconds maximum, then wait one minute).

Follow equipment manufacturer’s

recommendations for charging battery.

CAUTION

Operating Engine

After engine has started, let it warm up several seconds

to several minutes, depending on outside temperature.

For maximum performance and life, operate engine

with speed control in FAST, if equipped.

•Do not tip engine or equipment at angle which

causes gasoline to spill.

Periodically remove grass buildup under mower deck.

See Maintenance section.

Engines give off carbon monoxide,

an odorless, colorless, poison

gas.

Breathing carbon monoxide can

cause nausea, fainting or death.

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 combustibles 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.

WARNING

•Operate equipment with guards in

place.

•Keep hands and feet away from

rotating parts.

•Tie up long hair and remove

jewelry.

•Do not wear loose-fitting clothing,

dangling drawstrings or items that

could become caught.

WARNING

Stopping Engine

Depending on how your engine is equipped follow the

steps below:

1. Move speed control to SLOW then to STOP, then

release bail −OR −

2. Push stop switch to OFF −OR −

Do not stop engine by moving choke control to

CHOKE (if equipped). Backfire, fire or engine

damage could occur.

CAUTION

3. Turn key to OFF. Remove key and store out of

reach of children.

4. Close fuel shut-off valve if equipped.

Oil

Capacity

The engine holds approximately (18 oz.; 0.5 liter).

•Use a high quality SAE 30 weight motor oil.

•Do not use special additives.

•Choose a viscosity according to the table opposite.

Note: Synthetic oil meeting ILSAC

GF-2, API certification mark and API

service symbol (shown at left) with

“SJ/CF ENERGY CONSERVING” or

higher, is an acceptable oil at all

temperatures. Use of synthetic oil

does not alter required oil change

intervals.

Recommendation

°F-20 0 20 40 60 80 100

°C-30 -20 -10 0 10 20 30 40

STARTING TEMPERATURE RANGE BEFORE NEXT OIL CHANGE

Viscosity Grades

* Air cooled engines run hotter than automotive

engines. The use of non-synthetic multi-viscosity oils

(5W-30, 10W-30, etc.) in temperatures above 40°F

(4°C) will result in higher than normal oil

consumption. When using a multi-viscosity oil, check

oil level more frequently.

** 30 weight oil, if used below 40°F (4°C), will result in

hard starting and possible engine bore damage due

to inadequate lubrication.

CAUTION

Checking Oil Level •Check oil level before starting the engine.

•Check level daily, or after every eight (8) hours.

•Keep oil level at FULL.

1. Place engine level

and clean around oil

fill area.

2. Remove dipstick and

wipe clean with cloth.

3. Replace and tighten

dipstick. Remove and

check oil level. Oil lev-

el should be at FULL

line on dipstick.

4. If needed, add oil

slowly - recheck. Do

not over fill.

5. Wipe dipstick clean,

replace and tighten.

Remove and check oil

level. Oil level should

be at FULL line on

dipstick.

Do not overfill. Overfilling with oil may cause the

engine to not start, or hard starting. If over the

FULL mark on dipstick, drain oil to reduce oil

level to FULL mark on dipstick.

CAUTION

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