Vanguard 25V000 Operator'S Manual Download

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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.
1. Remove the dipstick (A, Figure 14) and clean with a cloth
2. Install and tighten the dipstick (A, Figure 14).
3. Remove the dipstick and check the oil level. Make sure that the oil level is at the top

of the full indicator (B, Figure 14) on the dipstick.

4. The engine has two oil fills (C, G, Figure 15). If the oil level is low, slowly add oil into

the engine oil fills (C, G). Do not add too much oil. After you add 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 14).

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

Warranty Certified oils for best

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

15W-50 Synthetic oil gives the best

protection.

SAE 30 -

Below 40 °F (4 °C) the use of SAE 30 will result in hard starting.

10W-30 -

Above 80 °F (27 °C) the use of 10W-30 may cause increased oil

consumption. Check the oil level frequently.

5W-30

Synthetic 5W-30

Vanguard

Synthetic 15W-50

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 16) 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.

•

Before you start the engine, disconnect or remove all external equipment and