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8
FUEL
QUANTUM)
TYPE OF FUEL TO USE
Use clean, fresh, regular unleaded gasoline with a
minimum of 77 octane.
INTEKE
TYPE OF FUEL TO USE
Use clean, fresh, regular unleaded gasoline with a
minimum of 85 octane.
CAUTION: Some fuels, called oxygenated or
reformulated gasoline, are gasoline blended with
alcohols or ethers. Excessive amounts of these
blends can damage the fuel system or cause
performance problems. If any undesirable operat-
ing symptoms occur, use gasoline with a lower
percentage of alcohol or ether.
• Fresh fuel prevents gum from forming in the fuel system or
on essential carburetor parts. Purchase fuel in quantity
that can be used within 30 days.
• Do not use gasoline which contains Methanol.
• Do not mix oil with gasoline.
• For engine protection use Briggs & Stratton Gasoline
Additive available from your Authorized Briggs &
Stratton Dealer (P/N 5041 or single use pouch).
• This engine is certified to operate on gasoline. Exhaust
Emission Control System: EM (Engine Modifications).
WARNING
• Do not use pressurized starting fluids.
• Vapors are flammable.
ADDING FUEL
CAUTION: Engine is often shipped with a blue plug in
the fuel fill, remove and discard. It is not a component of
the fuel tank.
WARNING
Fill fuel tank outdoors or in well-ventilated area,
away from sparks, open flames, pilot lights, heat,
and other ignition sources.
If fuel spills, wait until it evaporates before starting
engine.
Turn engine OFF and let engine cool at least 2
minutes before removing gas cap.
Fuel Fill
[1] Remove cap. Fill tank to approximately 1-1/2
inches below top of neck to allow for fuel expan-
sion. Be careful not to overfill.
Briggs & Stratton Smart-fill fuel can fills to the
correct level and automatically shuts off, reducing
spills and emissions.
[2] Replace cap before starting.
OPERATING TIPS
♦Use fresh fuel. Use correct type of oil for expected
starting temperature.
♦Remove external equipment/engine loads before
starting. (See equipment operating instructions.)
♦Start lawn mower on hard surface or over previously
cut grass.
♦Periodically remove grass buildup under mower
deck.
♦After engine has started, let it warm up several
seconds to several minutes, depending on outside
temperature.
♦For maximum performance and life, operate engine
with choke (if equipped) in RUN and throttle in FAST.