Features and Controls

Compare the illustration 1 with your engine to familiarize yourself with the location of various features and controls.

A.Engine Identification

Model Type Code

B.Spark Plug

C.Air Cleaner, Cyclonic

D.Air Cleaner, Low Profile

E.Dipstick

F.Oil Fill

G.Oil Filter

H.Oil Drain Plug

I.Oil Pressure Sensor

J.Finger Guard

K.Electric Starter

L.Starter Solenoid

M.Regulator/Rectifier

N.Carburetor

O.Oil Cooler (optional)

P.Muffler (optional)

Q.Fuel Pump

R.Starter Switch *

S.Throttle Control *

T.Choke Control *

U.Fuel Filter (optional)

*Some engines and equipment have remote controls. See the equipment manual for location and operation of remote controls.

Operation

Oil capacity (see the Specifications section)

Oil Recommendations

We recommend the use of Briggs & Stratton Warranty Certified oils for best performance. Other high-quality detergent oils are acceptable if classified for service SF, SG, SH, SJ or higher. Do not use special additives.

Outdoor temperatures determine the proper oil viscosity for the engine. Use the chart to select the best viscosity for the outdoor temperature range expected.

°F

°C

SAE 30

10W-30

Synthetic 5W-30

5W-30

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

**Above 80°F (27°C) the use of 10W-30 may cause increased oil consumption. Check oil level more frequently.

How To Check/Add Oil - Figure 2

Before adding or checking the oil

Place engine level.

Clean the oil fill area of any debris.

1.Remove the dipstick (A) and wipe with a clean cloth (Figure 2).

2.Insert and tighten the dipstick.

3.Remove the dipstick and check the oil level. It should be at the top of the full indicator (B) on the dipstick.

4.If low, add oil slowly into the engine oil fill (C). Do not overfill. After adding oil, wait one minute and then recheck the oil level.

5.Replace and tighten the dipstick.

Low Oil Protection System (if equipped)

Some engines are equipped with a low oil sensor. If the oil is low, the sensor will either activate a warning light or stop the engine. Stop the engine and follow these steps before restarting the engine.

Make sure the engine is level.

Check the oil level. See the How To Check/Add Oil section.

If the oil level is low, add the proper amount of oil. Start the engine and make sure the warning light (if equipped) is not activated.

If the oil level is not low, do not start the engine. Contact an Authorized Briggs & Stratton Dealer to have the the oil problem corrected.

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 acceptable.

CAUTION: 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 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 an authorized Briggs & Stratton 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 - Figure 3

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 2 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 3).

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.

How To Start The Engine - Figure 4

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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Briggs & Stratton 610000, 540000 manual Features and Controls, Operation