Oil Recommendations; Fuel Recommendations - Briggs & Stratton 90000 Operating & Maintenance Instructions

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
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
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
1/2 inch below lowest portion of fill opening 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.
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 lacera-
tion 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
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.
WARNING
Running engines produce heat. Engine
parts, especially muffler, become ex-
tremely hot.
Severe thermal burns can occur on con-
tact.
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.
2
WARNING
Unintentional sparking can result in fire
or electric shock.
Unintentional start-up can result in en-
tanglement, traumatic amputation, or
laceration.
BEFORE PERFORMING ADJUSTMENTS OR RE-
PAIRS
• 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.

OIL RECOMMENDATIONS

CAUTION:
Engine shipped from Briggs & Stratton without oil. Before
starting engine, fill with oil. Do not over-fill.
Use a high quality detergent oil classified For Service SG, SH,
SJ, SL" or higher such as Briggs & Stratton 30, Part Number
100005. Use no special additives with recommended oils. Do
not mix oil with gasoline.
**
*
°
20 32 40 60
F -20 0
°
C -30 -20 -10 0 10
Choose the SAE viscosity grade of oil from this chart that
matches the starting temperature anticipated before the next
oil change.
*
Air cooled engines run hotter than automotive engines.
The use of non-synthetic multi-viscosity oils (5W-30,
10W-30, etc.) in temperatures above 40° F (4° C) will
result in higher than normal oil consumption. When using
a multi-viscosity oil, check oil level more frequently.
**
Use of SAE 30 oil below 40° F (4° C) will result in hard
starting and possible engine damage due to inade-
quate lubrication.
Note:
Synthetic oil meeting ILSAC GF-2, API
certification mark and API service symbol (shown
at left) with SJ/CF ENERGY CONSERVING" or
higher, is an acceptable oil at all temperatures.
Use of synthetic oil does not alter required oil
change intervals.
ADD OIL
Fig. 2
(Oil capacity is about 18 oz. or 0.5 liter.)
1. Place engine level and clean around oil fill.
2. Remove oil filler plug.
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3. Oil should be full to overflowing.

FUEL RECOMMENDATIONS

Use clean, fresh, lead-free, regular gasoline with a minimum of
85 octane. Leaded gasoline may be used if it is commercially
available and if unleaded is unavailable. Purchase fuel in
quantity that can be used within 30 days. See Storage
instructions.
In U.S.A. leaded gasoline may not be used. Some fuels, called
oxygenated or reformulated gasolines, are gasolines blended
with alcohols or ethers. Excessive amounts of these blends
80 100
20 30 40
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