Oil Recommendations; Fuel Recommendations - Briggs & Stratton 91400 Operating & Maintenance Instructions

Oil Recommendations

Engine shipped from Briggs & Stratton without oil.
Before starting engine, fill with oil. Do not over fill.
Optional gear reduction is not filled with oil. If
engine is equipped with gear reduction, see oil filling
instructions in Maintenance, next page,.
Use a high quality detergent oil classified For Service
SF, SG, SH, SJ" or higher such as Briggs & Stratton
30W, Part Number 100005. Use no special additives
with recommended oils. Do not mix oil with gasoline.
Choose the SAE viscosity grade of oil from this chart
that matches the starting temperature anticipated
before the next oil change.
Note: Synthetic oil meeting ILSAC
GF 2, API certification mark and API ser
vice 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.
* 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.
** SAE 30 oil, if used below 40° F (4° C), will result
in hard starting and possible engine bore
damage due to inadequate lubrication.
Check oil level. (Oil capacity is about 21 oz. or 0.6 liter.)
Place engine level and clean around oil fill
Ë
Remove dipstick , wipe with clean cloth, insert and
tighten down again. Remove dipstick and check oil
level. Oil should be at FULL mark. If oil is required, add
slowly. Do not over fill.
OR
Ì
Remove oil filler plug . Oil should be full to
Í
overflowing .
Tighten dipstick or oil filler plug firmly before starting
engine.

Fuel Recommendations

Use clean, fresh, lead free gasoline with a minimum of
77 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.
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 can damage the fuel system
or cause performance problems. If any undesirable
operating symptoms occur, use gasoline with a lower
percentage of alcohol or ether.
This engine is certified to operate on gasoline. Exhaust
Emission Control System: EM (Engine Modifications).
Do not use gasoline which contains Methanol. Do not
mix oil with gasoline.
For engine protection, we recommend using Briggs &
Stratton Fuel Stabilizer available from an Authorized
Briggs & Stratton Service Dealer.
Check fuel level.

(see fig. )
Clean around fuel fill before removing cap to refuel. Fill
tank to approximately 1 1/2 inches below top of neck to
allow for fuel expansion. Be careful not to overfill.
Starting
(see figs.
Start, store and fuel equipment in level position.
Check oil level.
Open fuel shut off valve, if equipped.
Before starting (see fig.
1. Move choke control
2. Move throttle control
3. Turn fuel shut off valve
4. Move stop control to ON position
Rewind starter (see fig.
Ê
. necessary with choke in RUN position and throttle in
FAST. When engine starts, operate in FAST position.
Stopping
Do not move choke control to CHOKE position to stop
engine. Backfire or engine damage may occur. Move
throttle control to IDLE or SLOW position
equipped. Then move stop control to OFF position
Close fuel shut off valve
Note: When engine is transported, close fuel shut off
valve to prevent leakage.
Before refueling, allow
engine to cool 2 minutes.

)
ALWAYS KEEP HANDS AND FEET
CLEAR OF EQUIPMENT MOVING PARTS.
Do not use a pressurized starting
fluid. Vapors are flammable.

)
Ê
to CHOKE position.
Ë
to FAST position.
Ì
ON, if equipped.
Í
, if equipped.

)
Grasp rope handle and pull slowly until
resistance is felt. Then pull cord rapid
ly to overcome compression, prevent
kickback and start engine. Repeat if

(see fig. )
Ê
, if
Ì
.
3
Adjustments
it before adjusting, and disconnect battery at negative
terminal, if equipped.
Throttle control adjustments (see fig.
Manual friction control
Loosen or tighten wing nut
Ì
throttle control moves with some resistance and still
remains in desired position when engine is running.
Remote control
Í
Loosen casing clamp screw
in direction of arrow to end of travel. Move throttle
control to FAST position. Tighten casing clamp screw.
Fixed governor control
Ï
Top speed adjusting screw
factory as specified by equipment manufacturer. DO
NOT ADJUST. If adjustment is required, consult any
Briggs & Stratton Authorized Service Dealer.
Carburetor adjustment
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.
See an Authorized Briggs & Stratton Dealer for
carburetor adjustment.
Start engine and warm up approximately 5 minutes
before adjusting. With engine running, place throttle
control in SLOW position. Rotate carburetor throttle
lever against the idle speed screw and hold it. Turn idle
speed screw to obtain 1300 rpm.
Governed idle is set to 1750 rpm at the factory.
CARBURETOR
THROTTLE
LEVER
Ë
.
IDLE
SPEED
SCREW
To prevent acci
dental starting, re
move spark plug
wire Ê and ground

)
Ë
on control plate until
Î
. Move casing and wire
has been pre set at the