Engine Power Rating Information - Briggs & Stratton 120000 Operator's Manual

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.
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.
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.

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-engine variability. Given both the wide array of
products on which engines are placed and the variety of
4
WARNING
WARNING
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 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.
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 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.
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 horsepower). 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.
WARNING
WARNING
BRIGGSandSTRATTON.com