Briggs & Stratton 3500 Watt - Manual (Page 8)

Add Engine Oil
1. Place generator on a flat, level surface.
2. Clean area around oil fill and remove yellow oil fill cap.
NOTE: See the section Oil to review oil recommendations.
Verify provided oil bottle is correct viscosity for current
ambient temperature.
3. Using oil funnel (optional), slowly pour contents of
provided oil bottle into oil fill opening.
4. Replace oil fill cap and fully tighten.
Add Fuel
Fuel must meet these requirements:
• Clean, fresh, unleaded gasoline.
• A minimum of 87 octane/87 AKI (91 RON). High
altitude use, see below.
• Gasoline with up to 10% ethanol (gasohol) or up to
15% MTBE (methyl tertiary butyl ether) is acceptable.
To protect the fuel system from gum formation, mix in a fuel
stabilizer when adding fuel. See Storage. All fuel is not the
same. If you experience starting or performance problems
after using fuel, switch to a different fuel provider or change
brands. This engine is certified to operate on gasoline. The
emission control system for this engine is EM (Engine
Modifications).
1. Clean area around fuel fill cap, remove cap.
2. Slowly add unleaded gasoline (A) to fuel tank (B). Be
careful not to overfill. Allow about 1.5" (4 cm) of tank
space (C) for fuel expansion.
3. Install fuel cap and let any spilled fuel evaporate before
starting engine.
High Altitude
At altitudes over 5,000 feet (1524 meters), a minimum
85 octane / 85 AKI (89 RON) gasoline is acceptable. To
remain emissions compliant, high altitude adjustment is
required. Operation without this adjustment will cause
decreased performance, increased fuel consumption, and
increased emissions. See an authorized Briggs & Stratton
dealer for high altitude adjustment information. Operation of
the engine at altitudes below 2,500 feet (762 meters) with
the high altitude kit is not recommended.
6 BRIGGSandSTRATTON.COM
C
B
A
NOTICE
Improper treatment of generator can damage it and
shorten its life.
• DO NOT attempt to crank or start the engine before it has been
properly serviced with the recommended oil. This may result in
an engine failure.
NOTICE
Avoid generator damage.
Failure to follow Operator’s Manual for fuel
recommendations voids warranty.
• DO NOT use unapproved gasoline such as E85.
• DO NOT mix oil in gasoline.
• DO NOT modify engine to run on alternate fuels.
WARNING
Fuel and its vapors are extremely flammable and
explosive.
Fire or explosion can cause severe burns or
death.
WHEN ADDING FUEL
• Turn generator OFF and let it cool at least 2 minutes before
removing fuel cap. Loosen cap slowly to relieve pressure in
tank.
• Fill fuel tank outdoors.
• DO NOT overfill tank. Allow space for fuel expansion.
• If fuel spills, wait until it evaporates before starting engine.
• Keep fuel away from sparks, open flames, pilot lights, heat, and
other ignition sources.
• DO NOT light a cigarette or smoke.