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Briggs & Stratton
OPERATING AND MAINTENANCE
INSTRUCTIONS
MODELS
300401 to 300424
IMPORTANT: Do not start this engine
before
reading Section 1 and Section 2 of this manual.
CAUTION
PROVIDE EFFICIENT VENTILATION. Exhaust gases
contain carbon monoxide, an odorless and deadly poison. Do not operate
engine in an enclosed area.
KEEP ENGINE CLEAN. This engine is air-cooled. If cooling system becomes
clogged, serious damage may result. Therefore, keep the blower screen, fins
on flywheel, cylinder head and block free from grass or dirt.
SECTION 1
BEFORE STARTING
“OIL-FOAM”®AIR
CLEANER
“Oil-Foam” air cleaners are oiled at the
factory and do not require initial service.
FILL FUEL TANK
Use clean, fresh “regular” grade gasoline. Fill tank
completely.
DO NOT FILL GASOLINE TANK WHILE ENGINE IS RUNNING. Avoid
spilling gasoline on a hot engine — this may cause an explosion and serious
injury.
OIL RECOMMENDATIONS
FILL CRANKCASE WITH OIL
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FIG. A. Remove the oil filler plug. Place the
engine level. Fill the crankcase to overflowing. POUR SLOWLY. CAPACITY 4
PINTS. Replace the filler plug.
FIG. B. Remove cap and dipstick and fill to full
mark on dipstick. When checking oil level push dipstick assembly firmly but
slowly until cap bottoms on tube. Do not overfill. Dipstick assembly should
be pushed fully into tube assembly at all times when engine is
operating.
WINTER (Below 40~ F.)
Use SAE 5W-20
If not Available
Use SAE 10W oil diluted
with 10% kerosene
SUMMER (Above 4O~ F.)
Use SAE 30
If not Available
Use SAE 1OW-30
Any high quality detergent oil
having the American Petroleum Institute classification “For Service MS” can
be used in your Briggs & Stratton engine. Detergent oils keep the engine
cleaner and retard the formation of gum and varnish deposits. The oil
recommendations are the result of extensive testing. No special additives
should be used.
