Adding Fuel; Oil Pressure; Fuel Recommendations; Starting The Engine - Briggs & Stratton 2691351-00 Operator's Manual

Checking / Adding Oil
Before adding or checking the oil
• Place engine level.
• Clean the oil fill area of any debris.
1. Remove the dipstick (A, Figure 3) and wipe with a
clean cloth.
2. Insert and tighten the dipstick.
3. Remove the dipstick and check the oil level. It should
be at the FULL mark (B, Figure 3) on the dipstick.
4. If low, add oil slowly into the engine oil fill (C, Figure 3).
Do not overfill. After adding oil, wait one minute and
then recheck the oil level.
NOTE: Do not add oil at the quick oil drain (if
equipped).
5. Replace and tighten the dipstick.

Oil Pressure

If the oil pressure is too low, a pressure switch (if
equipped) will either stop the engine or activate a warning
device on the equipment. If this occurs, stop the engine
and check the oil level with the dipstick.
If the oil level is below the ADD mark, add oil until it reach-
es the FULL mark. Start the engine and check for proper
pressure before continuing to operate.
If the oil level is between the ADD and FULL marks, do not
start the engine. Contact an authorized dealer to have the
oil pressure problem corrected.

Fuel Recommendations

Fuel must meet these requirements:
• Clean, fresh, unleaded gasoline.
• A minimum of 87 octane / 87 AKI (91 RON). For high
altitude use, see below.
• Gasoline with up to 10% ethanol (gasohol) is accept-
able.
NOTICE
Do not use unapproved gasolines, such as E15 and E85.
Do not mix oil in gasoline or modify the engine to run on
alternate fuels. Use of unapproved fuels will cause dam-
age to engine components, which will not be covered
under 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. For
carbureted engines, high altitude adjustment is required to
remain emissions compliant. Operation without this adjust-
ment will cause decreased performance, increased fuel
consumption, and increased emissions. Contact a Briggs
& Stratton Authorized Service Dealer for high altitude
adjustment information.
Operation of the engine at altitudes below 2,500 feet (762
meters) with the high altitude adjustment is not recom-
mended. For Electronic Fuel Injection (EFI) engines, no
high altitude adjustment is necessary.

Adding Fuel

WARNING
Fuel and its vapors are extremely flammable and
explosive.
Fire or explosion can cause severe burns or
death.
When Adding Fuel
• Turn engine off and let engine cool at least 3 minutes
before removing the fuel cap.
• Fill fuel tank outdoors or in well-ventilated area.
• Do not overfill fuel tank. To allow for expansion of the
fuel, do not fill above the bottom of the fuel tank neck.
• Keep fuel 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.
1. Clean the fuel cap area of dirt and debris. Remove the
fuel cap (A, Figure 4).
2. Fill the fuel tank with fuel. To allow for expansion of
the fuel, do not fill above the bottom of the fuel tank
neck (B, Figure 4).
3. Reinstall the fuel cap.

Starting the Engine

WARNING
Fuel and its vapors are extremely flammable and
explosive.
Fire or explosion can cause severe burns or
death.
When Starting Engine
• Ensure that spark plug, muffler, fuel cap, and air
cleaner (if equipped) are in place and secured.
• Do not crank engine with spark plug removed.
• If engine floods, set choke (if equipped) to OPEN/
RUN position, move throttle (if equipped) to FAST
position and crank until engine starts.
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