Briggs & Stratton 90000, 90000 I/C 525 Series, 90000 Power Built 525 Series Operator's Manual
Operator’s Manual
Model 90000
I/C 475/525 Series
Power Built 475/525 Series
BRIGGSandSTRATTON.com
ECopyright Briggs & Stratton Corporation
Milwaukee, Wisconsin 53201 U.S.A.
Form No. 277098-9/06
Printed in U.S.A.
TABLE OF CONTENTS
Safety 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Information 4-5. . . . . . . . . . . . . . . . . . . . . . . . .
Oil 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 “Engine Information” page).
Starting and Stopping 8. . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 9-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service & Storage 13. . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty Information 14-17. . . . . . . . . . . . . . . . . . . .
Date of purchase:
Engine model:
Model: Code:Type:
BEFORE OPERATING ENGINE
• 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 engine will power. For that reason, you should carefully
read and understand 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.
MM /DD/YYYY
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.
HAZARD SYMBOLS AND MEANINGS
Fire
Explosion
Moving Parts
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.
Toxic Fumes
Wear Eye Protection
THE INTERNATIONAL SYMBOLS USED
Safety Alert
Oil
2
Kickback
Frostbite
ON THE ENGINE OR
IN THIS MANUAL INCLUDE:
Read Owner’s
Manual
Stop Fuel
Fuel Shutoff
Choke
On Off
ShockHot Surface
SAFETY
WARNING
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 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.
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
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.
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
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.
3
SAFETY
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
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 entanglement, 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
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). 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 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.
4
ENGINE INFORMATION
6
5
4
3
2
1. Rope Handle for Rewind Starter
2. Oil Drain Plug
3. Choke Control Lever
4. Throttle Lever
5. Air Cleaner
6. Fuel Tank Cap
7
1
8
9
10
11
2
7. Spark Plug / Spark Plug Wire
8. Muffler
9. Engine
Model Type Code
xxxxx xxxx xx xxxxxxxx
10. Stop Switch Wire (if equipped)
11. Oil Fill Cap
14
12. Fuel Fill
13. Throttle/Choke Control
13
14. Air Cleaner
15. Stop Switch
12
GENERAL INFORMATION
ENGINE MODEL
This is a single cylinder, L-head, air-cooled engine. It is a low emissions engine.
MODEL 90000
Bore 2-9/16 in. (65.09 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke 1-3/4 in. (44.45 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement 9.02 cu. in. (148.0 cc). . . . . . . . . . . . . . . . . . . . .
15
TUNE-UP SPECIFICATIONS
Armature air gap 0.006 − 0.010 in. (0.15 − 0.25 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 0.005 − 0.007 in. (0.13 − 0.18 mm). . . . . . . . . . . . . . . . .
Exhaust 0.007 − 0.009 in. (0.18 − 0.23 mm). . . . . . . . . . . . . . .
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). Engine will operate
satisfactorily at an angle up to 15°.
5
Loading...