Briggs & Stratton 150000 HORIZONTAL SERIES User manual

Operator’s Manual
BRIGGSandSTRATTON.com
ECopyright Briggs & Stratton Corporation
Milwaukee, Wisconsin 53201 U.S.A.
Form No. 277040-3/07
Printed in U.S.A.
Model 200000
Power Built 1350/1450 Series
Intek I/C 1350/1450 Series
I/C 1450 Series
Model 120000
Power Built 825/850/875/900 Series
Intek I/C 825/850/875/900 Series
I/C 825/850/875 Series
Model 150000
Power Built 1100/1125 Series
Model 210000
Power Built 1500/1575 Series
Intek I/C 1500/1575 Series

Thank You for purchasing this quality-built Briggs & Stratton engine. We’re pleased that you’ve placed your
confidence in the Briggs & Stratton brand. When operated and maintained according to the instructions in this
manual, your Briggs & Stratton product will provide many years of dependable service.
This manual contains safety information to make you aware of the hazards and risks
associated with engines and how to avoid them. It also contains instructions for the proper use and care of the
engine. Because Briggs & Stratton Corporation does not necessarily know what equipment this engine will power,
it is important that you read and understand these instructions and the instructions for the equipment this engine
powers.
Where to Find Us
You never have to look far to find Briggs & Stratton Support and service for your engine. Consult your Yellow
Pages™under “Engines-Gasoline”, “Gasoline-Engines”, “Lawn Mowers” or similar categories. There are over
30,000 Briggs & Stratton authorized service dealers worldwide who provide quality service. You can also contact
Briggs & Stratton Customer Service by phone at [phone]. Additional information can be found on the
Internet at www.BRIGGSandSTRATTON.com.
For replacement parts or technical assistance, record below the engine model, type, and code numbers along with
the date of purchase. These numbers are located on your engine (see the “Features” page).
Date of purchase:
Engine model:
MM/DD/YYYY
Model: Code:Type:
Briggs & Stratton is a trademark of
Briggs & Stratton Corporation
Milwaukee, WI, USA.
Copyright E2006 Briggs & Stratton Corporation,
Milwaukee, WI, USA. All rights reserved. Printed in U.S.A.
Briggs & Stratton Corporation
P.O. Box 702
Milwaukee, WI, 53201-0702

Features Operation Maintenance Trouble shooting Specifications WarrantiesSafety
1
Table of Contents
Safety 2..............................................
Symbols And Warnings 2..........................................
Features 5............................................
Operation 6...........................................
Oil Recommendation 6............................................
Check/Add Oil 6..................................................
Fuel Recommendations 7.........................................
Add Fuel 7......................................................
How To Start The Engine 8........................................
How To Stop The Engine 9........................................
Maintenance 10........................................
Maintenance Chart 10.............................................
Inspect Muffler And Spark Arrester 11................................
Carburetor Adjustment 11..........................................
Valve Clearance 11................................................
Spark Plug 11.....................................................
How To Change The Oil 12.........................................
How To Service The Air Filter 13.....................................
How To Change The Gear Reduction Oil 14...........................
How To Replace The Fuel Filter 14...................................
Clean Air Cooling System 15........................................
Storage (over 30 days) 15..........................................
Troubleshooting 16....................................
Specifications 17......................................
Power Ratings 17.................................................
Warranties 18..........................................
Engine Warranty 18................................................
Emissions Control System Warranty Statement 19.....................

Safety
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2
Safety
Symbols And Warnings
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 product.
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.
WARNING
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
Explosion
Toxic Fumes
Moving Parts
Shock
Hot Surface
Kickback
Fire
Fuel Shutoff
Read
Manual
Choke
Oil
Fuel
On Off
Stop
Wear Eye
Protection
Slow
Fast
SYMBOLS ASSOCIATED
WITH THIS PRODUCT
Thrown
Objects

Safety
3
Gasoline and its vapors are
extremely flammable and explosive.
Fire or explosion can cause severe
burns or death.
When Adding Fuel
•Turn engine off and let engine cool at least 2
minutes before removing the 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.
•If fuel spills, wait until it evaporates before
starting engine.
When Starting Engine
•Ensure that spark plug, muffler, fuel cap and
air cleaner are in place and secured.
•Do not crank engine with spark plug removed.
•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.
WARNING
Starting engine creates sparking.
Sparking can ignite nearby flammable
gases.
Explosion and fire could result.
•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
Engines give off carbon monoxide, an
odorless, colorless, poison gas.
Breathing carbon monoxide can
cause nausea, fainting or death.
•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.
Broken bones, fractures, bruises or
sprains could result.
•When starting engine, pull the starter 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, impellers, 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.
WARNING

Safety
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4
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 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.
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.
•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.
Unintentional sparking can result in
fire or electric shock.
Unintentional start-up can result in
entanglement, traumatic amputation,
or laceration.
WARNING

Features
5
Features
A. Spark Plug
B. Air Cleaner (flat or oval)
C. Choke Control Lever
D. Fuel Shut-off Valve
E. Rewind Handle
F. Finger Guard
G. Throttle Control Lever
H. ON/OFF Switch (rewind start models)
I. Fuel Tank and Cap
J. Extended Dipstick (if equipped)
K. Short Dipstick (if equipped)
L. Oil Drain Plug
M. Oil Fill Cap
N. Engine Identification (located on cover)
Model Type Code
O. Muffler
Muffler Guard (if equipped)
Spark Arrester (if equipped)
P. Safety Key (electric start models)
Q. ON/OFF Switch (electric start models)
R. Gear Reduction Unit (if equipped)
A
B
C
E
I
D
F
H
J
I
G
O
J
N
B
P
L
O
O
R
Q
C
A
L
M
K

Operation
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6
Operation
Oil Capacity
Model 120000 and 150000 series engines:
20 ounces (0.6 liter).
Model 200000 and 210000 series engines:
28 ounces (0.8 liter).
Oil Recommendation
•Do not use special additives.
•Choose a viscosity from the following chart.
SAE 30 40
° F and higher (5 ° C and higher)
is good for all purpose use above 40°F, use below
40°F will cause hard starting.
10W-30 0to100
° F (--18 to 38 ° C)
is better for varying temperature conditions. This
grade of oil improves cold weather starting, but may
increase oil consumption at 80°F(27°C) or higher.
Check oil level frequently at higher temperatures.
Synthetic 5W-30 --20 to 120
° F (--30 to 40 ° C)
provides the best protection at all temperatures as
well as improved starting with less oil consumption.
5W-30 40
° F and below (5 ° C and below)
is recommended for winter use, and works best in
cold conditions.
If this engine is equipped with a gear reduction
unit, the gear reduction case must be filled with oil
prior to operating the engine. See “How To Change
The Gear Reduction Oil” in the Maintenance
Section.
CAUTION
Check/Add Oil
Before adding or checking the oil
•Place engine level.
•Clean the oil fill area of any debris.
Models with oil fill cap (Figure 1)
1. Remove the oil fill cap (A).
2. Pour oil slowly. Fill to point of overflowing.
3. Replace and tighten the oil fill cap.
Figure 1: Oil Fill Cap
A
Short Dipstick (Figure 2)
1. Remove the dipstick (B) and wipe with a clean
cloth.
2. Insert the dipstick but do not screw in. Oil level
should be at FULL mark (C).
3. To add oil, pour oil slowly. Fill to point of
overflowing.
4. Replace and tighten the dipstick.
B
C
Figure 2: Short Dipstick
B
B
C

Operation
7
Extended Dipstick (Figure 3)
1. Remove the dipstick (B) and wipe with a clean cloth.
2. Insert and tighten the dipstick.
3. Remove the dipstick and check the oil level. Make
suretheoilisattheFULLmark(C)onthedipstick.
4. To add oil, pour the oil slowly into the engine oil fill
(D). DO NOT OVERFILL. After adding oil, wait one
minute and then recheck the oil level.
5. Fill to the FULL mark (C) on the dipstick.
6. Replace and tighten the dipstick.
Figure 3: Extended Dipstick
C
B
B
D
Fuel Recommendations
This engine is certified to operate on gasoline. The
emissions control system for this engine is EM
(Engine Modifications).
Gasoline must meet these requirements:
•Clean, fresh, unleaded gasoline.
•A minimum of 87 octane/87 AKI (91 RON). If
operating at high altitude, see below.
•Gasoline with up to 10% ethanol (gasohol) or up
to 15% MTBE (methyl tertiary butyl ether), is
acceptable.
•Use of any gasoline not consistent with the
requirements will void the engine warranty.
In some local areas, fuel pumps may be marked if the
gasoline contains alcohols or ethers. If you are unsure
about the gasoline you purchase, check with your fuel
provider.
•Do not modify the engine fuel system or
carburetor to run on alternative fuels.
•Never mix oil with gasoline.
All gasoline is not the same. If you experience starting
or performance problems after new gasoline has been
used in your engine, switch to a different fuel provider
or change fuel brands.
Some fuels, called oxygenated or reformulated fuels,
are fuels 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.
CAUTION
Fuel Stabilizer
To protect the fuel system from gum formation, mix in
a fuel preservative when adding fuel. Briggs &
Stratton recommends using FRESH STARTtfuel
stabilizer, available as a liquid additive, concentrated
liquid cartridge or granular additive.
High Altitude use
At higher altitudes (over 5,000 feet), 85 octane/85 AKI
(89 RON) gasoline can be used. Operation at high
altitude may require a high-altitude carburetor jet kit to
improve performance and decrease fuel consumption.
See an Authorized Briggs & Stratton service dealer for
more information.
Add Fuel (Figure 4)
Gasoline and its vapors are
extremely flammable and explosive.
Fire or explosion can cause severe
burns or death.
•Turn engine off and let engine cool at least 2
minutes before removing the gas cap.
•Fill fuel tank outdoors or in well-ventilated area.
•Keep gasoline away from sparks, open flames,
pilot lights, heat, and other ignition sources.
•If fuel spills, wait until it evaporates before
starting engine.
WARNING
1. Stop the engine. Before you remove gas cap (A),
let the engine cool at least 2 minutes.
2. Remove the gas cap. Fill the fuel tank (B) to
approximately 1-1/2 inches below top of neck to
allow for fuel expansion. Be careful, do not overfill.
3. Replace the gas cap before starting the engine.
Figure 4: Gas Cap
A
B

Operation
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8
How To Start The Engine
This engine was shipped from the factory without
oil. If you start the engine without oil, the engine
will be damaged beyond repair and will not be
covered under warranty.
CAUTION
Some engines may be equipped with OIL
GARD®.TheOIL GARD®is intended to warn
the operator that the engine is low on oil. Always
check oil level before starting. Engine damage
may occur if the oil level is not properly
maintained and will void warranty coverage. If
the engine will not start and/or has stopped
running, add oil (see “Check/Add Oil”
instructions).
CAUTION
1. Check the engine oil. See “Check/Add Oil” in the
Operation Section.
2. Turn the fuel shut-off valve (A), if equipped, to the
ON position (Figure 5).
Figure 5: Fuel Shut-off Valve
A
3. Move the choke control lever (C) to the CHOKE
position (Figure 6).
Figure 6: Choke Control Lever
C
4. Move the throttle control lever (D), if equipped, to
the FAST position. Operate the engine with
the throttle control lever in the FAST position
(Figure 7).
STOP
Figure 7: Throttle Control Lever
D
5. Rewind Start -- On engines equipped with an
ON/OFF switch (B), move the switch to the ON
position (Figure 8). On electric start models, push
in the safety key (F) (Figure 9).
Figure 8: ON / OFF Switch
B
Figure 9: Safety Key
F
6. Rewind Start -- Firmly hold the starter rope handle
(E) (Figure 10). Slowly pull the starter rope handle
until resistance is felt, then pull quickly.
To prevent damage to the rewind starting system,
do not allow the starter rope to snap back. Let the
rope slowly rewind.
CAUTION
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 the starter rope handle
slowly until resistance is felt, then pull rapidly.
WARNING