Briggs & Stratton 280000 - Manual (Page 3)

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Note: (This note applies only to engines used in the U.S.A.) Maintenance, replacement or repair of the emission control devices and systems may be performed
by any nonroad engine repair establishment or individual. However, to obtain no charge repairs under the terms and provisions of the Briggs & Stratton
warranty statement, any service or emission control part repair or replacement must be performed by a factory authorized dealer.
ENGINE COMPONENTS
Fig. 1
1
Oil drain
2
Oil fill / Dipstick
3
Rotating screen
4
Air cleaner handle
5
Muffler / muffler guard, if equipped
& Spark arrester, if equipped
6
12 V electric starter
7
Rewind starter handle
8
Fuel pump (if equipped)
9
In-line fuel filter (if equipped)
10
Carburetor or LPG / NG Mixer
11
Oil filter (if equipped)
12
Air Cleaner cover
13
Spark plug wire
14
Engine Model Type Code
xxxxxx xxxx xx xxxxxxxx
Record your engine Model, Type and Code numbers here for
future use.
Record your date of purchase here for future use.
GENERAL INFORMATION
In the state of California, OHV Models 210000, 280000 and
310000 engines are certified by the California Air Resources
Board to meet emissions standards for 250 hours. Such
certification does not grant the purchaser, owner or operator of
this engine any additional warranties with respect to the
performance or operational life of this engine. This engine is
warranted solely according to the product and emissions
warranties stated elsewhere in this manual.
Model 210000
Bore 87.31 mm (3.44 in.) . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke 57.66 mm (2.27 in.) . . . . . . . . . . . . . . . . . . . . . . .
Displacement 344 cc (21.00 cu. in.) . . . . . . . . . . . . . . . . .
Model 280000
Bore 87.31 mm (3.44 in.) . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke 77.78 mm (3.06 in.) . . . . . . . . . . . . . . . . . . . . . . .
Displacement 466 cc (28.42 cu. in.) . . . . . . . . . . . . . . . . .
Model 310000
Bore 90.60 mm (3.56 in.) . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke 77.78 mm (3.06 in.) . . . . . . . . . . . . . . . . . . . . . . .
Displacement 501 cc (30.59 cu. in.) . . . . . . . . . . . . . . . . .
TUNE-UP SPECIFICATIONS
Armature air gap 0.25 − 0.36 mm . . . . . . . . . . . . . . . . . .
(0.010 − 0.014 in.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark plug gap
0.76 mm (0.030 in.) . . . . . . . . . . . . . . . . .
Valve clearance with valve springs installed and piston 6 mm past
top dead center (check when engine is cold). See Repair
Manual P/N 272147.
Intake valve clearance
0.08 − 0.13 mm . . . . . . . . . . . . . .
(0.003 − 0.005 in.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust valve clearance
0.13 − 0.18 mm . . . . . . . . . . . . .
(0.005 − 0.007 in.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note: 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). Engine will operate
satisfactorily at an angle up to 15 °.
TECHNICAL INFORMATION
Engine Power Rating Information
The gross power rating for individual gas engine models is
labeled in accordance with SAE (Society of Automotive
Engineers) code J1940 (Small Engine Power & Torque
Rating Procedure), and rating performance has been
obtained and corrected in accordance with SAE J1995
(Revision 2002-05). Torque values are derived at 3060
RPM; horsepower values are derived at 3600 RPM. Actual
gross engine power will be lower and is affected by, among
other things, ambient operating conditions and engine-to-en-
gine variability. Given both the wide array of products on
which engines are placed and the variety of environmental
issues applicable to operating the equipment, the gas
engine will not develop the rated gross power when used in
a given piece of power equipment (actual on-site" or net
power). This difference is due to a variety of factors
including, but not limited to, accessories (air cleaner,
exhaust, charging, cooling, carburetor, fuel pump, etc.),
application limitations, ambient operating conditions
(temperature, humidity, altitude), and engine-to-engine
variability. Due to manufacturing and capacity limitations,
Briggs & Stratton may substitute an engine of higher rated
power for this Series engine.
Hazard Symbols and Meanings
Explosion
Toxic Fumes
Shock
Hot Surface Kickback
Fire
Moving Parts Frostbite Wear Eye Protection
International Symbols and Meanings
Stop Fuel Shutoff
Read Operator’s
Manual
Fuel
Choke Safety Alert Oil
On Off
SAFETY SPECIFICATIONS
• 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.
BEFORE OPERATING
ENGINE
* Briggs & Stratton does not necessarily know what equip-
ment this engine will power. For that reason, you should
carefully read and understand the operating instructions for
the equipment on which your engine is placed.
• 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.
THE OPERATING &
MAINTENANCE INSTRUCTIONS
CONTAIN SAFETY
INFORMATION TO:
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.
The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.
WARNING
• Start and run engine outdoors.
• Do not start or run engine in enclosed area, even if
doors or windows are open.
WARNING
Engines give off carbon monoxide, an
odorless, colorless, poison gas.
Breathing carbon monoxide can cause
nausea, fainting or death.
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.