High Altitude; Adding Fuel; Starting The Engine - Briggs & Stratton 2691184-00 Operator's Manual

High Altitude

At altitudes over 5,000 feet (1,524 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 dealer for high altitude ad-
justment information.
Operation of the engine at altitudes below 2,500 feet (762
meters) with the high altitude adjustment is not recom-
mended.

Adding Fuel

WARNING
Fuel and its vapors are extremely flammable and
explosive.
Fire or explosion can cause severe burns or
death.
When Adding Fuel
• T urn engine off and let engine cool at least 3 minutes
before removing the fuel cap.
• Fill fuel tank outdoors or in well-ventilated area.
• D o not overfill fuel tank. To allow for expansion of the
fuel, do not fill above the bottom of the fuel tank neck.
• K eep fuel away from sparks, open flames, pilot lights,
heat, and other ignition sources.
• C heck fuel lines, tank, cap, and fittings frequently for
cracks or leaks. Replace if necessary.
• I f 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 6). Also see Features and Controls
section.
2. Fill the fuel tank (B) with fuel. To allow for expansion of
the fuel, do not fill above the bottom of the fuel tank neck
(C).
3. Reinstall the fuel cap.
A
B
16

Starting the Engine

When Starting Engine
• E nsure that spark plug, muffler, fuel cap, and air
cleaner (if equipped) are in place and secured.
• Do not crank engine with spark plug removed.
• I f engine floods, set choke (if equipped) to OPEN/RUN
position, move throttle (if equipped) to FAST position
and crank until engine starts.
• Start and run engine outdoors.
• D o not start or run engine in enclosed area, even if
doors or windows are open.
1. Check the oil level (see Check and Add Engine Oil).
2. Sit in the seat and lift UP the seat adjustment lever,
position as desired, and release the lever to lock the seat
in position.
3. Engage the parking brake. Fully depress the brake
pedal, pull UP on the parking brake control, and release
the brake pedal.
4. Disengage PTO switch by pushing IN.
5. Set the throttle/choke control to the CHOKE position.
6. Insert the key into the ignition switch and turn it to the
ON/START position.
7. After the engine starts, move the throttle/choke control to
half speed. Warm up the engine by running it for at least
30 seconds.
8. Set throttle/choke control to the FAST position.
NOTE: In the event of an emergency, the tractor/engine
can be immediately stopped by pressing the start/stop push
button or pulling out the starter insert. For normal shut down,
see Stopping the Tractor and Engine section.
C
Figure 6
WARNING
Fuel and its vapors are extremely flammable and
explosive.
Fire or explosion can cause severe burns or
death.
WARNING
Engines give off carbon monoxide, an odorless,
colorless, poison gas.
Breathing carbon monoxide can cause nausea,
fainting, or death.
Fire or explosion can cause severe burns or death.