Briggs & Stratton 120000 Installation and operation manual

Document: - page 1 (Black)

Screen angle and frequency: 45.0000, 150.0000

Model Series

Covered in

This Manual

110000

120000

Operating & Maintenance

Instructions

Model Type Code

Month Day Year

Note: General Model Series numbers noted above are inclusive of the specific model

number found on your engine. To get replacement parts or technical assistance in

the future, write your engine Model, Type, Code and date of purchase here.

TABLE OF CONTENTS

Safety 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Engine Information 6. . . . . . . . . . . . . . . . . . . . . . . .

Oil 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuel and Starting Information 8. . . . . . . . . . . . . . .

Starting and Stopping 9-10. . . . . . . . . . . . . . . . . . .

Maintenance 11-13. . . . . . . . . . . . . . . . . . . . . . . . .

Adjustments 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts and Service & Storage 15-16. . . . . . . . . . . .

Warranty Information 17. . . . . . . . . . . . . . . . . . . . .

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.

Need assistance? Go to www.briggsandstratton.com

for detailed information regarding

Briggs & Stratton engines.

Or call, 1-800-233-3723, (U.S.A. and Canada)

to hear a menu of pre-recorded messages

offering engine maintenance information.

The Power That Works For You.

Look For Relevant Emissions Durability Period and Air Index Information On

Your Engine Emissions Label

Engines that are certified to meet the California Air Resources Board (CARB) Tier 2 Emission Standards must display information regard-

ing the Emissions Durability Period and the Air Index. Briggs & Stratton makes this information available to the consumer on our emission

labels. The engine emission label will indicate certification information.

TheEmissions Durability Period describes the number of hours of actual running time for which the engine is certified to be emissions

compliant, assuming proper maintenance in accordance with the Operating & Maintenance Instructions. The following categories are

used:

Moderate: Engine is certified to be emission compliant for 125 hours of actual engine running time.

Intermediate: Engine is certified to be emission compliant for 250 hours of actual engine running time.

Extended: Engine is certified to be emission compliant for 500 hours of actual engine running time.

For example, a typical walk-behind lawn mower is used 20 to 25 hours per year. Therefore, the Emissions Durability Period of an

engine with an intermediate rating would equate to 10 to 12 years.

The Air Index is a calculated number describing the relative level of emissions for a specific engine family. The lower the Air Index,

the cleaner the engine. This information is displayed in graphical form on the emissions label.

After July 1, 2000, Look For Emissions Compliance Period On

Engine Emissions Compliance Label

After July 1, 2000 certain Briggs & Stratton engines will be certified to meet the United States Environmental Protection Agency (USEPA)

Phase 2 emission standards. For Phase 2 certified engines, the Emissions Compliance Period referred to on the Emissions Compliance

label indicates the number of operating hours for which the engine has been shown to meet Federal emission requirements. For engines

less than 225 cc displacement, Category C = 125 hours, B = 250 hours and A = 500 hours. For engines of 225 cc or more, Category

C = 250 hours, B = 500 hours and A = 1000 hours.

The displacement of model series 110000 engine is 167 cc, and model series 120000 engine is 190 cc.

This is a generic representation

of the emission label typically

found on a certified engine.

BEFORE OPERATING ENGINE THE OPERATING & MAINTENANCE

INSTRUCTIONS CONTAIN SAFETY

INFORMATION TO:

•Make you aware of hazards associated with

engines

•Inform you of the risk of injury associated with

those hazards, and

•Tell you how to avoid or reduce the risk of injury.

275749

•Read entire Operating & Maintenance Instructions

AND the instructions for the equipment this engine

powers.*

•Failure to follow instructions could result in serious

injury or death.

*Briggs & Stratton does not necessarily know what equipment this en-

gine will power. For that reason, you should carefully read and under-

stand the operating instructions for the equipment on which your engine

is placed.

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.

WARNING

The engine exhaust from this

product contains chemicals known

to the State of California to cause

cancer, birth defects, or other

reproductive harm.

HAZARD SYMBOLS AND MEANINGS

Explosion

Toxic Fumes

Moving Parts Shock

Hot Surface

Kickback

Fire

THE INTERNATIONAL SYMBOLS USED

ON THE ENGINE OR

IN THIS MANUAL INCLUDE:

On Off

Fuel Shutoff

Read Owner’s

Manual

Stop Fuel

Choke

Safety Alert

Oil

Hazardous

Chemical

DANGER

•FreshStart fuel cap is designed to hold a cartridge which contains fuel stabilizer.

•IF SWALLOWED, call physician immediately. Do not induce vomiting. If inhaled,

remove to fresh air. In case of eye or skin contact, flush with water for 15 minutes.

•Store unopened cartridges in a cool, dry, well-ventilated area. Keep open cartridge

in fuel cap, and fuel cap closed on fuel tank when not in use.

Contents are HARMFUL OR FATAL IF SWALLOWED. Avoid contact to

eyes, skin, or clothing. Do not take internally. Avoid breathing the mist or

vapor. Overexposure to eyes or skin can cause irritation. Keep stabilizer

out of the reach of children.

Fuel stabilizer is a hazardous chemical. **

Your engine may be

equipped with a

FreshStartEfuel cap.

** Fuel stabilizer contains: 2,6-di-tert-butylphenol (128-39-2) and aliphatic petroleum distillate (64742-47-8).

SAFETY

Gasoline and its vapors are extremely

flammable and explosive.

Fire or explosion can cause severe burns

or death.

WARNING

WHEN ADDING FUEL

•Turn engine OFF and let engine cool at least 2

minutes before removing gas cap.

•Fill fuel tank outdoors or in well-ventilated area.

•Do not overfill fuel tank. Fill tank to approximately

1-1/2 inches below top of neck to allow for fuel

expansion.

•Keep gasoline away from sparks, open flames,

pilot lights, heat, and other ignition sources.

•Check fuel lines, tank, cap, and fittings frequently

for cracks or leaks. Replace if necessary.

WHEN STARTING ENGINE

•Make sure spark plug, muffler, fuel cap and air

cleaner are in place.

•Do not crank engine with spark plug removed.

•If fuel spills, wait until it evaporates before starting

engine.

•If engine floods, set choke to OPEN/RUN position,

place throttle in FAST and crank until engine starts.

WHEN OPERATING EQUIPMENT

•Do not tip engine or equipment at angle which

causes gasoline to spill.

•Do not choke carburetor to stop engine.

WHEN TRANSPORTING EQUIPMENT

•Transport with fuel tank EMPTY or with fuel shut-off

valve OFF.

WHEN STORING GASOLINE OR EQUIPMENT

WITH FUEL IN TANK

•Store away from furnaces, stoves, water heaters or

other appliances that have pilot light or other

ignition source because they can ignite gasoline

vapors.

Starting engine creates sparking.

Sparking can ignite nearby flammable

gases.

Explosion and fire could result.

WARNING

•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

Rapid retraction of starter cord (kickback) will

pull hand and arm toward engine faster than

you can let go.

Broken bones, fractures, bruises or sprains

could result.

•When starting engine, pull cord slowly until

resistance is felt, then pull rapidly.

•Remove all external equipment/engine loads

before starting engine.

•Direct coupled equipment components such as,

but not limited to, blades, impellors, pulleys,

sprockets, etc., must be securely attached.

WARNING

Rotating parts can contact or entangle

hands, feet, hair, clothing, or accessories.

Traumatic amputation or severe laceration

can result.

•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.

SAFETY

Engines give off carbon monoxide, an

odorless, colorless, poison gas.

Breathing carbon monoxide can cause

nausea, fainting or death.

WARNING

•Start and run engine outdoors.

•Do not start or run engine in enclosed area, even if

doors or windows are open.

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

Unintentional sparking can result in fire or

electric shock.

Unintentional start-up can result in en-

tanglement, traumatic amputation, or

laceration.

BEFORE PERFORMING ADJUSTMENTS OR

REPAIRS

•Disconnect spark plug wire and keep it away from

spark plug.

•Disconnect battery at negative terminal (only

engines with electric start).

WHEN TESTING FOR SPARK

•Use approved spark plug tester.

•Do not check for spark with spark plug removed.

ENGINE INFORMATION

TECHNICAL INFORMATION

POWER RATINGS: The power ratings for an individual engine

model are initially developed by starting with SAE (Society of Auto-

motive Engineers) code J1940 (Small Engine Power & Torque

Rating Procedure) (Revision 2002-05). Given both the wide array

of products on which our engines are placed, and the variety of en-

vironmental issues applicable to operating the equipment, it may

be that the engine you have purchased will not develop the rated

horsepower when used in a piece of power equipment (actual “on-

site” power). This difference is due to a variety of factors including,

but not limited to, the following: differences in altitude, tempera-

ture, barometric pressure, humidity, fuel, engine lubrication, maxi-

mum governed engine speed, individual engine to engine variabil-

ity, design of the particular piece of power equipment, the manner

in which the engine is operated, engine run-in to reduce friction

and clean out of combustion chambers, adjustments to the valves

and carburetor, and other factors. The power ratings may also be

adjusted based on comparisons to other similar engines utilized

in similar applications, and will therefore not necessarily match the

values derived using the foregoing codes.

ENGINE INFORMATION

1. Primer bulb

2. Air cleaner

3. Fuel fill

4. Finger guard

5. Spark plug wire

6. Carburetor

7. Rope handle

8. Fuel tank

9. Oil fill/Dipstick

10. Side drain plug (if equipped)

11. Muffler/Muffler guard (if equipped)

12. Spark arrester (if equipped)

13. Engine Model Type Code

xxxxx xxxx xx xxxxxxxx

GENERAL INFORMATION

This is a single cylinder, overhead valve (OHV), air-cooled engine.

It is a low emissions engine.

In the state of California, OHV Model Series 110000 and

120000 engines are certified by the California Air Resources

Board to meetemissions standardsfor 125 hours. Suchcertifi-

cation does not grant the purchaser, owner or operator of this

engine any additional warranties with respect to the perfor-

mance or operational life of this engine. This engine is war-

ranted solely according to the product and emissions warran-

ties stated elsewhere in this manual.

MODEL SERIES 110000

Bore 2-11/16 in. (68.26 mm). . . . . . . . . . . . . . . . . . . . . . . . .

Stroke 1-51/64 in. (46.00 mm). . . . . . . . . . . . . . . . . . . . . . .

Displacement 10.20 cu. in. (167.4 cc). . . . . . . . . . . . . . . .

MODEL SERIES 120000

Bore 2-11/16 in. (68.26 mm). . . . . . . . . . . . . . . . . . . . . . . . .

Stroke 2-3/64 in. (52.00 mm). . . . . . . . . . . . . . . . . . . . . . . .

Displacement 11.58 cu. in. (189.7 cc). . . . . . . . . . . . . . . . .

TUNE-UP SPECIFICATIONS

Armature air gap 0.006 - 0.014 in. (0.25 - 0.36 mm). . .

Spark plug gap 0.020 in. (0.51 mm). . . . . . . . . . . . . . . . . .

Valve clearance with valve springs installed and piston 1/4 in.

(6 mm) past top dead center (check when engine is cold).

See Repair Manual P/N 272147.

Intake 0.004 - 0.006 in. (0.10 - 0.15 mm). . . . . . . . . . . . .

Exhaust 0.004 - 0.008 in. (0.10 - 0.20 mm). . . . . . . . . . .

Note: For practical operation, the horsepower loading should

not exceed 85% of rated horsepower. Engine power will

decrease 3-1/2% for each 1,000 feet (300 meters) above

sea level and 1% for each 10°F (5.6°C) above 77°F

(25°C). It will operate satisfactorily at an angle up to 15°.

OIL

275749

CAUTION: This engine is shipped from Briggs &

Stratton without oil. Check oil level before starting

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

will be damaged beyond repair and will not be covered

under warranty.

OIL CAPACITY

Engine holds approximately 2/3 quart (22 ounces; 0.65 liter).

TYPE OF OIL TO USE

•Use a high quality detergent oil classified “For Service

SF, SG, SH, SJ” or higher, such as Briggs & Stratton

SAE 30, Part Number 100005 (20 oz) 100028 (48 oz), or

Briggs & Stratton Synthetic Oil, Part Number 100074

(32 oz).

•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 CON-

SERVING” or higher, is an acceptable oil at all

temperatures. Use of synthetic oil does not

alter required oil change intervals.

°F-20 0 20 40 60 80 100

°C-30 -20 -10 0 10 20 30 40

STARTING TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

*CAUTION: 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.

** CAUTION: SAE 30 oil, if used below 40°F (4°C),

will result in hard starting and possible engine bore

damage due to inadequate lubrication.

SAE Viscosity Grades

CHECKING AND ADDING OIL

•Check oil level before starting the engine.

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

•Keep oil level at FULL.

CAUTION:

Do not overfill. Overfilling with oil may cause:

•Smoking

•Hard starting

•Spark plug fouling

•Oil saturation of air filter.

[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 Fill FULL

[4] Oil level should be at FULL line

on dipstick.

[5] If needed, add oil slowly.

[6] Recheck oil level.

Do not over fill.

[7] Replace and tighten dipstick.

FUEL

TYPE OF FUEL TO USE

•Use clean, fresh, regular unleaded gasoline with a

minimum of 85 octane. Fresh fuel prevents gum from

forming in the fuel system or on essential carburetor parts.

Purchase fuel in quantity that can be used within 30 days.

•Do not use gasoline which contains Methanol.

•Do not mix oil with gasoline.

•If not equipped with a Fresh Start fuel cap, for engine

protection, use Briggs & Stratton Gasoline Additive

available from your Authorized Briggs & Stratton Dealer

(P/N 5041 or single use pouch).

•This engine is certified to operate on gasoline. Exhaust

Emission Control System: EM (Engine Modifications).

CAUTION: Some fuels, called oxygenated or reformu-

lated gasoline, are gasoline blended with alcohols or

ethers. Excessive amounts of these blends can damage

the fuel system or cause performance problems. If any

undesirable operating symptoms occur, use gasoline

with a lower percentage of alcohol or ether.

ADDING FUEL

[1] Remove cap. Fill tank to approximately 1-1/2

inches below top of neck to allow for fuel

expansion. Be careful not to overfill.

Briggs & Stratton Smart-fillfuel can fills to the

correct level and automatically shuts off, reducing

spills and emissions.

[2] Replace cap before starting.

Fuel Fill

Note: Remove and discard blue plug in fuel fill.

FRESH START FUEL CAP

DANGER

•IF SWALLOWED, call physician immediately.

Cartridgewith Lift N’ PeelEtab.

Cartridge with tab removed.

Contents are HARMFUL OR FATAL IF SWALLOWED.

Avoid contact to eyes, skin, or clothing. Do not take

internally. Avoid breathing the mist or vapor. Overexposure

to eyes or skin can cause irritation. Keep stabilizer out of the

reach of children.

Fuel stabilizer is a hazardous chemical. **

** Fuel stabilizer contains 2,6-di-tert-butylphenol

(128-39-2)and aliphatic petroleum distillate (64742-47-8).

[1] Place cartridge

into fuel cap. [2] Push to “snap”

cartridge into

place.

[3] Remove the

tab to expose

membrane.

[4] Reinstall fuel

cap on engine

fuel tank.

[5] Periodically check

the cartridge to

ensure there is still

stabilizer liquid

inside. If it is

empty, remove

cartridge and

replace.

STARTING

WARNING

•Do not use pressurized starting fluids.

•Vapors are flammable.

•Smoking,

•Hard starting,

•Spark plug fouling,

•Oil saturation of air filter.

CAUTION

If engine must be tipped to transport equipment, inspect or

remove grass, keep spark plug side of engine up.

Transporting or tipping engine with spark plug down may

cause: KEEP SPARK PLUG UP

STARTING AND OPERATING TIPS

♦Store and fuel equipment in level position.

♦Use fresh fuel. (See Fuel.)

♦Use correct type of oil for expected starting

temperature. (See Oil.)

♦Remove external equipment/engine loads. (See

equipment operating instructions.)

♦Start lawn mower on hard surface or over previously

cut grass.

♦Periodically remove grass buildup under mower

deck. (See Maintenance.)

♦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 choke (if equipped) in RUN and throttle in FAST.

REWIND (MANUAL) STARTER

TO START ENGINE

[1] Check oil level (see p. 7).

[2] Open fuel shut-off valve

(if equipped) 1/4 turn.

[3] Move throttle to FAST (if equipped).

Operate engine with throttle in FAST.

[4] Push stop switch (if equipped) to ON.

[5] Firmly push primer bulb 3 times OR

[6] Rotate choke knob or move choke

control lever to CHOKE position.

Primer Choke

[7] Close safety brake

handle on lawn mowers

and any other equipment

with this feature.

[8] Grasp rope handle. Pull slowly until

resistance is felt, then pull rapidly to

start engine and avoid kickback.

[9] Allow engine to

warm up.

If choke

equipped:

Slowly adjust to-

ward RUN posi-

tion. Wait until

engine runs

smoothly before

each choke

adjustment.

WARNING

STARTING AND STOPPING

ELECTRIC (KEY) STARTER (if equipped)

TO START ENGINE

[1] Check oil level (see p. 7).

[2] Open fuel shut-off valve

(if equipped) 1/4 turn.

[3] Move throttle to FAST (if

equipped). Operate en-

gine with throttle in

FAST position.

[4] Firmly push primer bulb 3 times OR

rotate choke knob or move choke control

lever to CHOKE position.

Primer Choke

[5] Close safety brake

handle on lawn mowers

and any other equipment

with this feature.

[6] Insert key and

turn to START.

CAUTION: To prolong starter life, use short

starting cycles (5 seconds maximum, then wait

one minute). Follow equipment manufacturer’s

recommendations for charging battery. [7] Allow engine to warm up.

If choke equipped:

Slowly adjust toward

RUN position. Wait until

engine runs smoothly

before each choke

adjustment.

TO STOP ENGINE

CAUTION: Do not stop engine by moving choke

control to CHOKE. Backfire, fire or engine damage

could occur.

[1] Move throttle (if

equipped) to

SLOW, then re-

lease safety brake

control handle.

[2] Move throttle

(if equipped)

to SLOW,

then to STOP.

OR [3] Push stop switch (if equipped) to

OFF.

[4] Turn key to OFF. Remove key

and store out of reach of

children.

[5] Close fuel

shut-off valve

(if equipped).

Other manuals for 120000

Table of contents

Other Briggs & Stratton Engine manuals

Briggs & Stratton

Briggs & Stratton 95700 Series Manual

Briggs & Stratton

Briggs & Stratton 310000 VERTICAL SERIES User manual

Briggs & Stratton

Briggs & Stratton 420000 Series Manual

Briggs & Stratton

Briggs & Stratton 210000 Series User manual

Briggs & Stratton

Briggs & Stratton 310000 VERTICAL SERIES User manual

Briggs & Stratton

Briggs & Stratton Vanguard 130000 User manual

Briggs & Stratton

Briggs & Stratton Vanguard 350000 User manual

Briggs & Stratton

Briggs & Stratton 445600 Series Setup guide

Briggs & Stratton

Briggs & Stratton Vanguard 540000 Series User manual

Briggs & Stratton

Briggs & Stratton Professional Series 775 Series 110000 User manual

Briggs & Stratton

Briggs & Stratton 400000 Professional Series User manual

Briggs & Stratton

Briggs & Stratton Vanguard 50000 User manual

Briggs & Stratton

Briggs & Stratton 21000 Series Installation and operation manual

Briggs & Stratton

Briggs & Stratton Vanguard 540000 Series User manual

Briggs & Stratton

Briggs & Stratton 210000 Series User manual

Briggs & Stratton

Briggs & Stratton 12V800 Series Setup guide

Briggs & Stratton

Briggs & Stratton 400000 Professional Series Manual

Briggs & Stratton

Briggs & Stratton Vanguard 540000 Series User manual

Briggs & Stratton

Briggs & Stratton 400000 Professional Series User manual

Briggs & Stratton

Briggs & Stratton 1450 Series User manual

Briggs & Stratton

Briggs & Stratton 250000 Series User manual

Briggs & Stratton

Briggs & Stratton 133200 Series Installation instructions

Briggs & Stratton

Briggs & Stratton 150000 HORIZONTAL SERIES User manual

Briggs & Stratton

Briggs & Stratton 272484 Manual

Popular Engine manuals by other brands

Rotax

Rotax 125 senior MAX evo installation manual

Kohler

Kohler K361 Service manual

MTD

MTD OHV Series user guide

Kohler

Kohler COMMAND CH18-745 Service manual

Mercury

Mercury D4.2L D-Tronic manual

Selve

Selve SE Plus-RC Series Operating instruction

Perkins

Perkins 1206E-E66TA Operation and maintenance manual

Skov

Skov DA 174 Technical user guide

Rossi

Rossi TX11 Series manual

Siemens

Siemens SIMOTICS T-1FW3 Configuration manual

AL-KO

AL-KO PRO 350 Instructions for use

MTU

MTU 12 V 4000 Lx4 operating instructions

Nanni

Nanni N3.30 Workshop manual

Nanni

Nanni N5.160 CR2 Operator's manual

KSB

KSB SuPreme Series Installation & operating manual

Hiwin

Hiwin EM1 Series user manual

Rotax

Rotax 912 i series Service instructions

Siemens

Siemens SIMOTICS XP 1MB1 operating instructions