Operation; Oil Recommendations; Fuel Recommendations - Briggs & Stratton 250000 Operator's Manual

Fuel Level - Maximum
Do Not Overfill

Operation

Oil Recommendations

Oil Capacity: See the Specifications section.
NOTICE
This engine was shipped from Briggs & Stratton without oil. Equipment manufacturers or
dealers could have added oil to the engine. Before you start the engine for the first time,
make sure that the oil is at the correct level. Add oil as specified by the instructions in
this manual. If you start the engine without oil, damage will occur and the engine will not
be repaired under warranty.
We recommend the use of Briggs & Stratton
performance. Other high-quality detergent oils are permitted if classified for service SF,
SG, SH, SJ or higher. Do not use special additives.
Use the chart to select the best viscosity for the outdoor temperature range expected.
Engines on most outdoor power equipment operate well with 5W-30 Synthetic oil. For
equipment operated in hot temperatures, Vanguard
protection.
A SAE 30 - Below 40 °F (4 °C) the use of SAE 30 will result in hard starting.
B 10W-30 - Above 80 °F (27 °C) the use of 10W-30 may cause increased oil
consumption. Check the oil level frequently.
C 5W-30
D Synthetic 5W-30
E
®
Vanguard Synthetic 15W-50
Check the Oil Level
Before you check the oil level
• Make sure that the engine is level.
• Clean the oil fill area of unwanted material.
• Refer to the Specifications section for the oil capacity.
Short Dipstick, if installed
1. Remove the dipstick (A, Figure 4). Use a cloth to remove oil from the dipstick.
2. Install the dipstick (A, Figure 4). Do not turn or tighten the dipstick.
3. Remove the dipstick and check the oil level. The correct oil level is at the top of the
full indicator (B, Figure 4) on the dipstick.
4. If the oil level is low, slowly add oil into the engine oil fill (C, Figure 4). Do not add
too much oil. Wait one minute and check the oil level again. Make sure that the oil
level is correct.
5. Install and tighten the dipstick (A, Figure 4).
Extended Dipstick, if installed
1. Remove the dipstick (A, Figure 5). Use a cloth to remove remaining oil from the
dipstick.
2. Install the dipstick (A, Figure 5). Do not turn or tighten the dipstick..
3. Remove the dipstick and check the oil level. The correct oil level is at the top of the
full indicator (B, Figure 5) on the dipstick.
4. If the oil level is low, slowly add oil into the engine oil fill (C, Figure 5). Do not add
too much oil. Wait one minute and check the oil level again. Make sure that the oil
level is correct.
5. Install and tighten the dipstick (A, Figure 5).
6
®
Warranty Certified oils for best
®
15W-50 Synthetic oil gives the best
6. Connect the spark plug wire to the spark plug. Refer to the Remove Oil section.
Low Oil Protection System (if installed)
A low oil sensor is installed on some engines. If the oil is low, the sensor will show a
warning light or stop the engine. Stop the engine and do the steps that follow before you
start the engine.
• Make sure that the engine is level.
• Do an oil check. Refer to the Check Oil Level section.
• If the oil level is low, add the correct amount of oil. Start the engine and make
sure that the warning light (if installed) does not come on.
• If the oil level is not low, do not start the engine. Contact a Briggs & Stratton
Authorized Service Dealer to correct the oil problem.

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) is permitted.
NOTICE
Do not use unapproved gasoline, such as E15 and E85. Do not mix oil in gasoline or
change the engine to operate on alternate fuels. Use of unapproved fuels could result in
damage to engine components, which will not be repaired under the warranty.
To protect the fuel system from gum formation, and corrosion, mix an alcohol-free fuel
stabilizer and ethanol treatment into the fuel. Refer to the Storage section. All fuel is not
the same. If start or performance problems occur, change fuel providers or brands. This
engine is certified to operate on gasoline. The emissions control system for carbureted
engines is EM (Engine Modifications). The emissions control systems for engines with
electronic fuel injection are ECM (Engine Control Module), MPI (Multi Port Injection), and
if equipped an O2S (Oxygen Sensor).
High Altitude
At altitudes over 5,000 feet (1524 meters), a minimum 85 octane/85 AKI (89 RON)
gasoline is permitted.
For carbureted engines, high altitude adjustment is required to maintain performance.
Operation without this adjustment 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 recommended.
For Electronic Fuel Injection (EFI) engines, no high altitude adjustment is necessary.
Add Fuel
WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in
burns or death.
When you add fuel
• Stop the engine. Before you remove the fuel cap, wait a minimum of two (2)
minutes to make sure that the engine is cool.
• Fill the fuel tank outdoors or in an area that has good airflow.
• Do not put too much fuel in the tank. 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.
• Frequently examine the fuel lines, fuel tank, fuel cap, and connections for cracks
or leaks. Replace damaged parts.
• If fuel spills, wait until it dries before you start the engine.
1. Clean the fuel cap area of dirt and debris. Remove the fuel cap.
2. Fill the fuel tank (A, Figure 6) with fuel. Because fuel will expand, do not fill above
the bottom of the fuel tank neck (B).
3. Install the fuel cap.
Start the Engine
WARNING
Fast retraction of the starter cord (kickback) will pull your hand and arm to the engine
faster than you can let go. Broken bones, fractures, bruises or sprains could result. To
prevent kickback when you start the engine, pull the starter cord slowly until resistance
is felt and then pull quickly.