User's Manual

GB
3
Oil Recommendations (see fig. ©)
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
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 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.
* 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
.
Remove dipstick, wipe with clean cloth, insert and
tighten down again. Remove dipstick and check oil
level. Oil should be at FULL mark
.
OR
Remove oil filler plug
. Oil should be full to
overflowing
.
If oil is required, add slowly.Tighten dipstick or oil filler
plug firmly before starting engine.
Fuel Recommendations
Use clean, fresh, lead-free, regular, gasoline with a
minimum of 77 octane. Leaded gasoline may be used if
it is commercially available and if unleaded is unavail-
able. 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.
Before refueling, allow
engine to cool 2 minutes.
Clean around fuel fill before removing cap to refuel. Fill
tank to approximately 1/2 inch below lowest portion of
fill opening to allow for fuel expansion. Be careful not to
overfill.
Starting (see figs. ¡¢£)
ALWAYS KEEP HANDS AND FEET
CLEAROF EQUIPMENTMOVINGPARTS.
Do not use a pressurized starting
fluid. V apors are flammable.
Start, store and fuel equipment in level position.
Check oil level.
CAUTION: OIL GARD®, if equipped, (see
10
fig.
¡)
is intended to prevent starting an engine that is low on oil.
OIL GARD® may not shut down a running engine.
Engine damage may occur if oil level is not properly
maintained and will void warranty coverage. Always
check oil level before starting engine.
If engine is equipped with OIL GARD®, and if engine
runs low on oil, light on engine warns of low oil level. If
light flickers and engine cannot be started, or has
stopped and cannot be restarted, add oil. Fill to point of
overflowing at oil fillcap or toFULL mark ondipstick. Do
not over-fill.
Before starting (see fig.
¢)
1. Move choke control to CHOKE or ST ART position .
Note: If engine does not start, remove air cleaner to
check choke. Choke must fully close . If not, see
Adjustments.
2. If equipment has separate choke and throttle
controls, move throttle control to FAST position
.
3. Move stop control to ON position
, if equipped.
Rewind starter (see fig.
£)
Grasp rope handleand pull slowly until
resistance is felt. Then pull cord rapid-
ly to overcome compression, prevent
kickback and start engine. Repeat i
f
necessary with choke in RUN position and throttle in
FAST. When FAST. When engine starts, operate in
FAST position.
Electric starter (see fig.
£)
Onengines equipped with12 volt starting systems, turn
key to START position or press starter button
.
Repeat if necessary with throttle control in FAST
position. When engine starts, operate in FASTposition.
Note: If equipment manufacturer has supplied battery,
charge it before trying to start engine, as equipment
manufacturer recommends.
Note: Use short starting cycles (15 secs. per min.) to
prolong starter life. Extended cranking can damage
starter motor.
Stopping (see fig. ¤)
Do not move choke control to CHOKE to stop engine.
Backfire or engine damage may occur. Move throttle
control to IDLE or SLOW position
, if equipped. Then
turn key to OFF or move stop control STOP or OFF
position .
Adjustments (see fig. ¥)
To prevent acci-
dental starting, re-
move spark plug
wire  and ground
it before adjusting, and disconnect battery at negative
terminal, if equipped.
Throttle control adjustments
Remove air cleaner (air cleaner base not shown for
clarity). Loosen casing clamp screw
 oncarburetor or
control plate.
If choke control is remote, push bell crank  either way
until it just touches washer
.
If choke control is manual
, move casing and wire  in
direction of arrow to end of travel.
Move throttle control to FAST position. Tighten casing
clamp screw. Replace air cleaner.
Fixed governor control
Governor control
 has been set to permit top no-load
RPM specified by equipment manufacturer. If adjust-
ment is required, consult any Briggs & Stratton
Authorized Service Dealer.
Check stop switch
Move throttle control to STOP position, if so equipped.
Governor control lever on carburetor or control plate
must make good contact with stop switch. Check and
readjust if necessary.
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.
The carburetor on this engine is low emission. Air/fuel
mixture is not adjustable
. Only the idle speed screw is
adjustable. Governed idle has been set to 1750 at the
factory.
To adjust the idle speed, start engine and warm up
approximately 5 minutes. Then with engine running,
place throttle control in SLOW position. Rotate carbu-
retor throttle lever against the throttle stop and hold it
while adjusting idle speed screw to obtain 1100 rpm.
THROTTLE
LEVER
IDLE SPEED
SCREW
THROTTLE
STOP