Briggs & Stratton 12K300 INTEK series Manual

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Operating & Maintenance
Instructions
Model 12K300 IntekESeries for Pump applications
covered in this manual
FORM NO. 276797-1/06
PRINTED IN U.S.A.
Copyright 2006 by Briggs & Stratton Corporation
www.briggsandstratton.com
The Power That Works For You)

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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, and how to
avoid them. Because Briggs & Stratton 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.
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.
Table of Contents
Safety Reference 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Features 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Engine 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjusting Choke after Engine has Started 6. . . . . . . . . . . . . . . . . . . .
Stopping Engine 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Maintenance 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Storage 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Specifications 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service and Parts Contact Info. 15. . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty Information 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SYMBOLS ASSOCIATED
WITH THIS ENGINE:
Explosion
Toxic Fumes
Moving Parts
Shock
Hot Surface
Kickback
Fire
On Off
Fuel Shutoff
Read
Manual
Petrol
Choke
Oil
Run
Kerosene
The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.
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
Engine Emissions
This engine is not certified to be in compliance with the engine
emission standards of the United States Environmental
Protection Agency (U.S. EPA) the California Air Resources
Board (CARB), nor the European Union (EU). This engine
cannot be sold in the United States or the European Union.
This engine is intended for India use only.

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Engine Features
1. Engine Identification Model Type Code
2. Spark Plug
3. Oil Fill
4. Oil Drain
5. Stop Switch
6. Starter Handle
7. Air Cleaner
8. Choke Control
9. Kerosene Tank
10. Primer Bulb
12
3
4
5
7
8
4
6
9
10

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Operator Safety
Kerosene 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 fuel cap.
Fill fuel tank outdoors or in well-ventilated area.
Do not overfill fuel tank.
Keep kerosene 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 start engine with air filter or cover not
properly installed. Serious injury or death could
result from backfire.
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 choke carburetor to stop engine.
WHEN TRANSPORTING EQUIPMENT
Transport with fuel tank EMPTY.
WHEN STORING KEROSENE 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 fuel vapors.
WARNING
Starting engine creates sparking.
Sparking can ignite nearby flammable
gases.
Explosion and fire could result.
If there is natural or LP fuel 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 cord slowly until
resistance is felt, then pull rapidly.
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.
WARNING

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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.
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
Unintentional sparking can result in fire or
electric shock.
Unintentional start-up can result in
entanglement, traumatic amputation, or
laceration.
BEFORE PERFORMING ADJUSTMENTS OR
REPAIRS
Disconnect spark plug wire and keep it away from
spark plug.
Do not strike the flywheel with a hammer or hard
object because the flywheel may later shatter
during operation.
Do not tamper with governor spring, links or other
parts to increase engine speed.
Use only correct tools.
WHEN TESTING FOR SPARK
Use approved spark plug tester.
Do not check for spark with spark plug removed.
WARNING

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Oil Recommendation
Use a high quality detergent oil classified “For Service SF, SG, SH, SJ” or higher.
Do not use special additives.
Determine best grade for use by temperature during
operation, see chart.
SAE 30 405F and higher (55C and higher)
is good for all purpose use above 40F, use below 40F
will cause hard starting.
10W-30 0 to 1005F (−18 to 385C)
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 1205F(−30 to 405C)
provides the best protection at all temperatures as well as
improved starting with less oil consumption.
5W-30 405F and below (55C and below)
is recommended for winter use, and works best in cold
conditions.
Oil Capacity
The engine holds approximately 5/8 qt. (20 oz; 0.6 liter).
Adding Oil
Check oil level before starting the engine.
Keep oil level at FULL.
Check level daily, or after every eight (8) hours.
1. Place engine level and clean around oil fill plug. (A)
2. Remove oil fill plug. Fill oil to point of overflowing. (B)
3. Replace plug before starting engine.
A
B

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Fuel Recommendation
Kerosene
Use clean, fresh kerosene. Fresh kerosene prevents gum
from forming in the fuel system or on essential carburetor
parts. Purchase kerosene in quantity that can be used
within 30 days.
To keep kerosene fresh and protect the engine use a
Kerosene Additive.
Do not mix oil with kerosene.
Adding Fuel
1. Replace cap before starting.
2. Clean area around black kerosene cap and remove.
Fill tank to approximately 1-1/2 inches below top of
neck to allow for fuel expansion (A). Be careful not to
overfill.
3. Replace cap before starting.
Kerosene 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 fuel cap.
Fill fuel tank outdoors or in well-ventilated area.
Do not overfill fuel tank.
Keep kerosene 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.
WARNING
A

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Starting Engine
1. Check oil level.
2. Fill kerosene tank with kerosene.
3. Fill petrol tank with petrol per the equipment
manufacturer’s instructions.
4. Move CHOKE to choke position (A).
5. Move throttle control to fast position, if equipped.
6. Open kerosene shut off valve (B).
7. Push rocker switch to ON position (C).
8. Push primer bulb three times (D).
9. Grasp rope handle. Pull slowly until resistance is felt,
then pull rapidly to start engine and avoid kickback (E).
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
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.
Direct coupled equipment components such as,
but not limited to, blades, impellors, pulleys,
sprockets, etc., must be securely attached.
WARNING
A
BC
D
E
Adjusting Choke
After engine has started, slowly adjust choke to OPEN (A)
position as engine warms up.
A

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Operation
Do not tip engine or equipment at angle which causes
kerosene or petrol to spill.
The manufacturer of the equipment on which this
engine is installed specifies top speed at which the
engine will be operated. DO NOT EXCEED this speed.
WARNING
Stopping Engine
Do not stop engine by moving choke control to
CHOKE.
Backfire, or explosion can cause severe burns
or death. Engine damage may occur.
WARNING
1. Do not move choke lever. (A)
2. Push stop switch to OFF position (1).
3. Close kerosene shut off valve (2).
A
B
C
Troubleshooting
Starter Handle will Not Pull
Place equipment on flat level surface.
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.
Engine will Not Start
Out of Fuel
Add kerosene to tank.
Prime engine.
Engine Flooded
Set choke (if equipped) to OPEN/RUN position, and
continue to pull starter handle.
Spark Plug Fouling
Check an ensue the spark plug is clean. Check the gap
with a feeler gage and reset to .76 mm or .030 in. if
necessary.
Replace the spark plug if upon inspection the electrode
is burned or worn.
Engine is Smoking or Running
Rough
Engine may have been tipped during
transport.
Check for fouled spark plug.
Check air cleaner filter for oil saturation. If clean but
saturated, squeeze in clean, absorbant cloth to remove
ALL EXCESS oil. If filter is dirty see page 11 for
servicing air cleaner.
Ensure fuel cap is in place before starting
engine
Turn engine OFF and let engine cool at
least 2 minutes before removing fuel cap.
Do not crank engine with spark plug
removed.
WARNING
If engine is tipped to transport equipment, to remove
debris, to drain oil, etc., keep the spark plug side
of engine up.
CAUTION
Need Assistance?
Go to www.briggsandstratton.com

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Engine Specifications
Operation of this engine is for the application it was
intended for. All the components used to build this
engine assembly must remain in place for the proper
operation of this engine.
CAUTION
We recommend that you use an authorized Briggs &
Stratton Service Dealer for all maintenance and service of
the engine and engine parts. Use only genuine Briggs &
Stratton parts.
Model Series 120000
Bore 2.69 in. (68.26 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke 2.04 in. (52 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement 11.57 cu. in. (190 cc). . . . . . . . . . . . . . . . . . . .
Tune-up Specifications
Armature air gap 0.010 −0.014 in. (0.25 −0.36 mm). . . . .
Spark plug gap 0.030 in. (0.76 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 270962.
Intake 0.004 −0.006 in. (0.10 −0.15 mm). . . . . . . . . . . . . . .
Exhaust 0.009 −0.011 in. (0.23 −0.28 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.
Model, Type and Code Number
To get replacement parts or technical assistance in the
future write you engine Model, Type and Code number
along with the date of purchase here. These numbers are
located on your engine. For the location, see page 3,
Engine Features.
Model Series
Type
Code
Technical Information
Power Ratings: The power ratings for an individual engine
model are initially developed by starting with SAE (Society
of Automotive 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 environmental
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, temperature, barometric
pressure, humidity, fuel, engine lubrication, maximum
governed engine speed, individual engine to engine
variability, 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.