Operator`s manual

Operation
8 BRIGGSandSTRATTON.COM
Fuel Recommendations
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.
CAUTION: Do not use unapproved gasolines, such as E85.
Do not mix oil in gasoline or modify the engine to run on
alternate fuels. This will damage the engine components
and void the engine warranty.
To protect the fuel system from gum formation, mix a fuel
stabilizer into the fuel. See Storage. All fuel is not the same.
If starting or performance problems occur, change fuel
providers or change brands. This engine is certified to
operate on gasoline. The emissions control system for this
engine is EM (Engine Modifications)
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 a Briggs & Stratton Authorized 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.
How To Add Fuel
When Adding Fuel
• Turn engine off and let engine cool at least 2
minutes before removing the fuel cap.
• Fill fuel tank outdoors or in well-ventilated
area.
• Do not overfill fuel tank. Fill tank to
approximately 1.5 inches (38 mm) below top
of neck to allow for fuel expansion.
• Keep gasoline away from sparks, open
flames, pilot lights, heat, and other ignition
sources.
• Check fuel lines, tank, cap, and fittings
frequently for cracks or leaks. Replace if
necessary.
• If fuel spills, wait until it evaporates before
starting engine.
WARNING
Gasoline and its vapors are extremely
flammable and explosive.
Fire or explosion can cause severe burns or
death.
1. Clean the fuel cap area of dirt and debris. Remove the
fuel cap (A) (Figure 3).
2. Fill the fuel tank (B) with gasoline. To allow for
expansion of the gasoline, do not fill above the bottom of
the fuel tank neck (C).
3. Reinstall the fuel cap.
Figure 3
B
C
A