Briggs & Stratton Intek 825, Intek 850, Intek 875, 120000 Intek Pro 825 Series Operator's Manual

Operator’s Manual

Manual del Operario

Manuel de l’opérateur

Model 120000

Intekt 825/850/875 Seriest Intekt Edge 825/850 Seriest Intekt Pro 825 Seriest

Briggs & Stratton is a registered trademark of Briggs & Stratton Corporation

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Form No. 277102TRI B

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General Information

For replacement parts or technical assistance, record below the engine model, type, and code numbers along with the date of purchase. These numbers are located on your engine (see the Features and Controls page).

WARNING

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Date of purchase:

MM/DD/YYYY

Engine model:

Model: Code:Type:

Engine Power Rating Information

The gross power rating for individual gas engine models is labeled in accordance with SAE (Society of Automotive Engineers) code J1940 (Small Engine Power & Torque Rating Procedure), and rating performance has been obtained and corrected in accordance with SAE J1995 (Revision 2002-05). Torque values are derived at 3060 RPM; horsepower values are derived at 3600 RPM. Actual gross engine power will be lower and is affected by, among other things, ambient operating conditions and engine-to-engine variability. Given both the wide array of products on which engines are placed and the variety of environmental issues applicable to operating the equipment, the gas engine will not develop the rated gross power when used in a given piece of power equipment (actual “on-site” or net power). This difference is due to a variety of factors including, but not limited to, accessories (air cleaner, exhaust, charging, cooling, carburetor, fuel pump, etc.), application limitations, ambient operating conditions (temperature, humidity, altitude), and engine-to-engine variability. Due to manufacturing and capacity limitations, Briggs & Stratton may substitute an engine of higher rated power for this Series engine.

Operator Safety

SAFETY AND CONTROL SYMBOLS

Fire

Fast

Choke

Hazardous

Chemical

The safety alert symbol result in personal injury. A signal word (DANGER, WARNING, or CAUTION) is used with the alert symbol to indicate the likelihood and the potential severity of injury. In addition, a hazard symbol may be used to represent the type of hazard.

Moving Parts

Stop

On Off

Read Manual

is used to identify safety information about hazards that can

Oil

Explosion

Fuel Shutoff

Hot Surface

DANGER indicates a hazard which, if not avoided, will result in death or

serious injury.

WARNING indicates a hazard which, if not avoided, could result in death or

serious injury.

Toxic Fumes

Shock

Kickback

Frostbite

Slow

Fuel

Wear Eye

Protection

WARNING

Briggs & Stratton does not approve or authorize the use of these engines on 3-wheel All Terrain Vehicles (ATVs), motor bikes, fun/recreational go-karts, aircraft products, or vehicles intended for use in competitive events. Use of these engines in such applications could result in property damage, serious injury (including paralysis), or even death.

CAUTION: This engine was shipped from Briggs & Stratton without oil. Before you start the engine, make sure you add oil according to the instructions in this manual. If you start the engine without oil, it will be damaged beyond repair and will not be covered under warranty.

WARNING

Gasoline 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. Fill tank to approximately 1.5 inches (38 mm) below top of

neck to allow for fuel expansion.

• Keep gasoline 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.

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.

When Operating Equipment

• Do not tip engine or equipment at angle which causes gasoline to spill.

• Do not choke the carburetor to stop engine.

• Never start or run the engine with the air cleaner assembly (if equipped) or the air

filter (if equipped) removed.

When Changing Oil

• If you drain the oil from the top oil fill tube, the fuel tank must be empty or fuel can leak out and result in a fire or explosion.

When Transporting Equipment

• Transport with fuel tank EMPTY or with fuel shut-off valve OFF.

When Storing Gasoline Or Equipment With Fuel In Tank

• Store away from furnaces, stoves, water heaters or other appliances that have pilot light or other ignition source because they can ignite gasoline vapors.

WARNING

Starting engine creates sparking. Sparking can ignite nearby flammable gases. Explosion and fire could result.

• If there is natural or LP gas leakage in area, do not start engine.

• Do not use pressurized starting fluids because vapors are flammable.

CAUTION indicates a hazard which, if not avoided, might result in minor or

moderate injury.

CAUTION, when used without the alert symbol, indicates a situation that

could result in damage to the product.

• Start and run engine outdoors.

• Do not start or run engine in enclosed area, even if doors or windows are open.

WARNING

Engines give off carbon monoxide, an odorless, colorless, poison gas. Breathing carbon monoxide can cause nausea, fainting or death.

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WARNING

Contents are HARMFUL OR FATAL IF SWALLOWED. Avoid contact to eyes, skin, or clothing. Do not take internally. Avoid breathing the mist or vapor. Overexposure to eyes or skin can cause irritation. KEEP STABILIZER OUT OF THE REACH OF CHILDREN.

Fuel stabilizer is a hazardous chemical. **

WARNING

Running engines produce heat. Engine parts, especially muffler, become extremely hot.

Severe thermal burns can occur on contact. Combustible debris, such as leaves, grass, brush, etc. can catch fire.

• IF SWALLOWED, call physician immediately. Do not induce vomiting. If inhaled, removetofreshair.Incaseofeyeorskincontact, flush with water for 15 minutes.

• Store unopened cartridges in a cool, dry, well-ventilated area. Keep open cartridge in fuel cap and fuel cap closed on fuel tank when not in use.

** Fuel stabilizer contains: 2,6-di-tert-butylphenol (128-39-2) and aliphatic petroleum

distillate (64742-47-8).

• In case of emergency, contact a physician immediately and call 1-800-424-9300 for material safety information.

WARNING

Rapid retraction of starter cord (kickback) will pull hand and arm toward engine faster than you can let go.

Broken bones, fractures, bruises or sprains could result.

• When starting engine, pull the starter cord slowly until resistance is felt and then pull rapidly to avoid kickback.

• Remove all external equipment/engine loads before starting engine.

• Direct-coupled equipment components such as, but not limited to, blades, impellers,

pulleys, sprockets, etc., must be securely attached.

WARNING

Rotating parts can contact or entangle hands, feet, hair, clothing, or accessories.

Traumatic amputation or severe laceration can result.

• Operate equipment with guards in place.

• Keep hands and feet away from rotating parts.

• Tie up long hair and remove jewelry.

• Do not wear loose-fitting clothing, dangling drawstrings or items that could become

caught.

• Allow muffler, engine cylinder and fins to cool before touching.

• Remove accumulated debris from muffler area and cylinder area.

• Install and maintain in working order a spark arrester before using equipment on

forest-covered, grass-covered, brush-covered unimproved land. The state of California requires this (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal land.

WARNING

Unintentional sparking can result in fire or electric shock. Unintentional start-up can result in entanglement, traumatic amputation,

or laceration. Fire hazard

Before performing adjustments or repairs:

• Disconnect the spark plug wire and keep it away from the spark plug.

• Disconnect battery at negative terminal (only engines with electric start.)

• Use only correct tools.

• Do not tamper with governor spring, links or other parts to increase engine speed.

• Replacement parts must be the same and installed in the same position as the

original parts.

• Do not strike the flywheel with a hammer or hard object because the flywheel may later shatter during operation.

When testing for spark:

• Use approved spark plug tester.

• Do not check for spark with spark plug removed.

Features and Controls

Compare the illustration1with your engine to familiarize yourself with the location of various features and controls.

A. Engine Identification

Model Type Code

B. Spark Plug C. Primer (optional) D. Fuel Tank and Cap E. Air Cleaner F. Starter Cord Handle G. Dipstick H. Oil Drain Plug I. Muffler

Muffler Guard (optional) Spark Arrester (optional)

J. Choke (optional) K. Throttle Control (optional) L. Stop Switch (optional) M. Shut-off Valve (optional) N. Fuel Filter (optional) O. Finger Guard P. Oil Filter (optional)

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

To protect the fuel system from gum formati on, 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 a Briggs & Stratton Authorized 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

WARNING

Gasoline 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. Fill tank to approximately 1.5 inches (38 mm) below top of

neck to allow for fuel expansion.

• Keep gasoline 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 gasoline. To allow for expansion of the gasoline, do not fill above the bottom of the fuel tank neck (C).

3. Reinstall the fuel cap.

Fresh Start®Fuel Cap - Figure

Some engines are equipped with a Fresh Start fuel cap (A) (Figure 4). The Fresh Start fuel cap is designed to hold a cartridge (B), sold separately, that contains fuel stabilizer.

How To Start The Engine

SAE 30

10W-30

Synthetic 5W-30

5W-30

• When starting engine, pull the starter cord slowly until resistance is felt and then pull

WARNING

Rapid retraction of starter cord (kickback) will pull hand and arm toward engine faster than you can let go.

Broken bones, fractures, bruises or sprains could result.

rapidly to avoid kickback.

WARNING

* 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

Before adding or checking the oil

• Place engine level.

• Clean the oil fill area of any debris.

1. Remove the dipstick (G) 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 FULL mark (J)onthe dipstick.

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

5. Replace and tighten the dipstick.

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) or up to 15% MTBE (methyl tertiary

butyl ether) is acceptable.

CAUTION: Do not use unapproved gasolines, such as E85. Do not mix oil in gasoline or modify the engine to run on alternate fuels. This will damage the engine components and

void the engine warranty.

When Starting Engine

• Ensure that spark plug, muffler, fuel cap and air cleaner 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

• Start and run engine outdoors.

• Do not start or run engine in enclosed area, even if doors or windows are open.

Determine The Starting System

Before starting the engine, you must determine the type of starting system that is on your engine. Your engine will have one of the following types.

• Ready Start

Gasoline and its vapors are extremely flammable and explosive. Fire or explosion can cause severe burns or death.

equipped) to fast position and crank until engine starts.

WARNING

Engines give off carbon monoxide, an odorless, colorless, poison gas. Breathing carbon monoxide can cause nausea, fainting or death.

does not have a manual choke or a primer.

System: This features a temperature controlled automatic choke. It

6 BRIGGSandSTRATTON.COM

• Primer System: This features a red primer to be used for starting in cool temperatures. It does not have a manual choke.

• Choke System: This features a choke to be used for starting in cool temperatures. Some models will have a separate choke lever while others will have a combination choke/throttle lever. This type does not have a primer.

To start your engine, follow the instructions for your type of starting system.

Ready Start®System - Figure

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

2. Make sure equipment drive controls, if equipped, are disengaged. See the equipment manual for location and operation of these controls.

3. Push the stop switch (A), if equipped, to the on position (Figure 5).

4. Turn the fuel shut-off valve (B), if equipped, to the on position.

5. Move the throttle control (C)tothefast

position.

6. If the product is equipped with an engine stop lever (D), hold the engine stop lever against the handle (Figure 6).

7. Rewind Start: Firmly hold the starter cord handle (E). Pull the starter cord handle slowly until resistance is felt, then pull rapidly (Figure 5).

Note: If the engine does not start after three attempts, go to BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in USA).

5 6

position. Operate the engine in the fast

WARNING: Rapid retraction of the starter cord (kickback) will pull your

hand and arm toward the engine faster than you can let go. Broken bones, fractures, bruises or sprains could result. When starting engine, pull the starter cord slowly until resistance is felt and then pull rapidly to avoid kickback.

8. Electric Start: Turn the electric start switch to the on/start position. See the equipment manual for the location and operation of the switch.

Note: If the engine does not start after three attempts, go to

BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in USA). CAUTION: To extend the life of the starter, use short starting cycles (five seconds

maximum). Wait one minute between starting cycles.

Primer System - Figure

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

2. Push the stop switch (A), if equipped, to the on position (Figure 5).

3. Turn the fuel shut-off valve (B), if equipped, to the on position.

4. Move the throttle control (C)tothefast

position.

5. Push the red primer (F) three times.

Note: Priming is usually unnecessary when restarting a warm engine. Note: If you push the primer too many times, excessive fuel will flood the carburetor

and the engine will be difficult to start.

6. Make sure equipment drive controls, if equipped, are disengaged. See the equipment manual for location and operation of these controls.

7. If the product is equipped with an engine stop lever (D), hold the engine stop lever against the handle (Figure 6).

8. Rewind Start: Firmly hold the starter cord handle (E). Pull the starter cord handle slowly until resistance is felt, then pull rapidly (Figure 5).

Note: If the engine does not start after three attempts, repeat Steps 6, 7, and 8. If it still does not start, go to BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in USA).

5 6

position. Operate the engine in the fast

WARNING: Rapid retraction of the starter cord (kickback) will pull your

9. Electric Start: Turn the electric start switch to the on/start position. See the equipment manual for the location and operation of the switch.

Note: If the engine does not start after three attempts, repeat Steps 6, 7, and 9. If it still does not start, go to BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in USA).

CAUTION: To extend the life of the starter, use short starting cycles (five seconds maximum). Wait one minute between starting cycles.

Choke System - Figure

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

2. Push the stop switch (A), if equipped, to the on position (Figure 5).

3. Turn the fuel shut-off valve (B), if equipped, to the on position.

4. Move the throttle control (C)tothefast

position.

5. Move the c hoke lever (G), or the combination choke/throttle lever, to the choke

position.

5 6

position. Operate the engine in the fast

Note: Choke is usually unnecessary when restarting a warm engine.

6. Make sure equipment drive controls, if equipped, are disengaged. See the equipment manual for location and operation of these controls.

7. If the product is equipped with an engine stop lever (D), hold the engine stop lever against the handle (Figure 6).

8. Rewind Start: Firmly hold the starter cord handle (E). Pull the starter cord handle slowly until resistance is felt, then pull rapidly (Figure 5). Note: If the engine does not start after three attempts, go to

BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in USA).

WARNING: Rapid retraction of the starter cord (kickback) will pull your

9. Electric Start: Turn the electric start switch to the on/start position. See the equipment manual for the location and operation of the switch. Note: If the engine does not start after three attempts, go to

BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in USA). CAUTION: To extend the life of the starter, use short starting cycles (five seconds

maximum). Wait one minute between starting cycles.

10. As the engine warms up, move the choke control (G)totherun

5).

How To Stop The Engine - Figure

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position (Figure

WARNING

Gasoline and its vapors are extremely flammable and explosive. Fire or explosion can cause severe burns or death.

• Do not choke the carburetor to stop engine.

1. Release the engine stop lever lever (A, Figure 6)

Engine with Throttle Control: Move the throttle control (C, Figure 5) to the stop

position

Engine with Stop Switch: Push the stop switch (A, Figure 5) to the off position

Engine with Electric Start: Turn the electric start switch to the off/stop position.

See the equipment manual for the location and operation of the switch.

2. Engine with optional Fuel Shut-off: After the engine stops, turn the fuel shut-off valve (B, Figure 5) to t he closed position.

Maintenance

Use only original equipment replacement parts. Other parts may not perform as well, may damage the unit, and may result in injury. In addition, use of other parts

may void your warranty. We recommend that you see any Briggs & Stratton Authorized Dealer for all maintenance and service of the engine and engine parts. CAUTION: All the components used to build this engine must remain in place for proper operation.

Emissions Control

Maintenance, replacement, or repair of the emissions control devices and systems may be performed by any non-road engine repair establishment or individual.

However, to obtain “no charge” emissions control service, the work must be performed by a factory authorized dealer. See the Emissions Warranty.

WARNING

Unintentional sparking can result in fire or electric shock. Unintentional start-up can result in entanglement, traumatic amputation,

or laceration. Fire hazard

Before performing adjustments or repairs:

• Disconnect the spark plug wire and keep it away from the spark plug.

• Use only correct tools.

• Do not tamper with governor spring, links or other parts to increase engine speed.

• Replacement parts must be the same and installed in the same position as the

original parts.

• Do not strike the flywheel with a hammer or hard object because the flywheel may later shatter during operation.

When testing for spark:

• Use approved spark plug tester.

• Do not check for spark with spark plug removed.

Maintenance Chart

First 5 Hours

• Change oil

Every8HoursorDaily

• Check engine oil level

• Clean area around muffler and controls

• Clean finger guard (if equipped)

Every 25 Hours or Annually

• Clean air filter *

• Clean pre-cleaner *

Every 50 Hours or Annually

• Change engine oil

• Replace oil filter (if equipped)

• Check muffler and spark arrester

Annually

• Replace air filter

• Replace pre-cleaner

• Replace spark plug

• Clean air cooling system *

• Clean/Replace fuel filter

• Check valve clearance **

* In dusty conditions or when airborne debris is present, clean more often. ** Not required unless engine performance problems are noted.

How To Change The Oil - Figure

2 9 10 11 12

WARNING

Gasoline and its vapors are extremely flammable and explosive. Fire or explosion can cause severe burns or death.

• If you drain the oil from the top oil fill tube, the fuel tank must be empty or fuel can leak out and result in a fire or explosion.

CAUTION: Used oil is a hazardous waste product and must be disposed of properly. Do not discard with household waste. Check with your local authorities, service center, or dealer for safe disposal/recycling facilities.

Remove Oil

You can drain the oil from the bottom drain hole, the side drain hole, or from the top oil fill tube.

1. With engine off but still warm, disconnect the spark plug wire (A) and keep it away from the spark plug (Figure 9).

2. The engine is equipped with a bottom drain (B, Figure 10) and/or a side drain (C). Removetheoildrainplug(D). Drain the oil into an approved container.

Note: Any of the oil drain plugs (D) shown may be installed in the engine.

3. After the oil has drained, install and tighten the oil drain plug.

4. If you drain the oil from the top oil fill tube (E), keep the spark plug end of the engine (F) up (Figure 11). Drain the oil into an approved container.

Carburetor Adjustment

Never make adjustments to the carburetor. The carburetor was set at the factory to operate efficiently under most conditions. However, if adjustments are required, see a Briggs & Stratton Authorized Dealer for service. CAUTION: The manufacturer of the equipment on which this engine is installed specifies the top speed at which the engine will be operated. Do not exceed this speed.

How To Replace The Spark Plug - Figure

Check the gap (A, Figure 7) with a wire gauge (B). If necessary, reset the gap. Install and tighten the spark plug to the recommended torque. For gap setting or torque, see the Specifications section. Note: In some areas, local law requires using a resistor spark plug to suppress ignition signals. If this engine was originally equipped with a resistor spark plug, use the same type for replacement.

Inspect Muffler And Spark Arrester - Figure

WARNING

Running engines produce heat. Engine parts, especially muffler, become extremely hot.

Severe thermal burns can occur on contact. Combustible debris, such as leaves, grass, brush, etc. can catch fire.

• Allow muffler, engine cylinder and fins to cool before touching.

• Remove accumulated debris from muffler area and cylinder area.

• Install and maintain in working order a spark arrester before using equipment on

forest-covered, grass-covered, brush-covered unimproved land. The state of California requires this (Section 4442 of the California Public Resources Code).

Other states may have similar laws. Federal laws apply on federal land. Inspect the muffler (A, Figure 8) f or cracks, corrosion, or other damage. Remove the spark arrester (B), if equipped, and inspect for damage or carbon blockage. If replacement parts are required, make sure to use only original equipment replacement parts.

WARNING: Replacement parts must be the same and installed in the same

position as the original parts or fire could result.

WARNING: If you drain the oil from the top, the fuel tank must be empty or fuel

can leak out and result in a fire or explosion. To empty the fuel tank, run the engine until it stops from lack of fuel.

Change The Oil Filter (if equipped)

Some model are equipped with an optional oil filter. For replacement intervals, see the Maintenance chart.

1. Drain the oil from the engine. See “How To Change The Oil”.

2. Remove the oil filter (K) and dispose of properly. See Figure 12.

3. Before you install the new oil filter, lightly lubricate the oil filter gasket with fresh, clean oil.

4. Install the oil filter by hand until the gasket contacts the oil filter adapter, then tighten theoilfilter1/2to3/4turns.

5. Add oil. See Add Oil section.

6. Start and run the engine. As the engine warms up, check for oil leaks.

7. Stop the engine and check the oil level. It should be at the FULL mark on the dipstick.

Add Oil

• Place engine level.

• Clean the oil fill area of any debris.

• See the Specifications section for oil capacity.

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

2. Pour the oil slowly into the engine oil fill (H). Do not overfill. After adding oil, wait one minute and then check the oil level.

3. Install and tighten the dipstick.

4. Remove the dipstick and check the oil level. It should be at the FULL mark (J)onthe dipstick.

5. Install and tighten the dipstick.

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How To Service The Air Filter - Figure

WARNING

Gasoline and its vapors are extremely flammable and explosive. Fire or explosion can cause severe burns or death.

• Never start or run the engine with the air cleaner assembly or the air filter removed.

CAUTION: Do not use pressurized air or solvents to clean the filter. Pressurized air can damage the filter and solvents will dissolve the filter.

1. Remove the fasteners (A) and the air filter cover (B). (Figure 13).

2. Remove the pre-cleaner (C) and the filter (D).

3. To loosen debris, gently tap the filter on a hard surface. If the filter is excessively dirty, replace with a new filter.

4. Wash the pre-cleaner in liquid detergent and water. Then allow it to thoroughly air dry. Do not oil the pre-cleaner.

5. Assemble the dry pre-cleaner to the filter.

6. Install the filter and pre-cleaner into the base (E). Make sure filter fits securely in the base.

7. Install air filter cover and secure with fasteners. Make sure the fasteners are tight.

Storage

WARNING

Gasoline and its vapors are extremely flammable and explosive. Fire or explosion can cause severe burns or death.

When Storing Gasoline Or Equipment With Fuel In Tank

• Store away from furnaces, stoves, water heaters or other appliances that have pilot lights or other ignition sources because they can ignite gasoline vapors.

Fuel System

Fuel can become stale when stored over 30 days. Stale fuel causes acid and gum deposits to form in the fuel system or on essential carburetor parts. To keep fuel fresh, use Briggs & Stratton FRESH START drip concentrate cartridge.

There is no need to drain gasoline from the engine if a fuel stabilizer is added according to instructions. Run the engine for 2 minutes to circulate the stabilizer throughout the fuel system. The engine and fuel can t hen be stored up to 24 months.

If gasoline in the engine has not been treated with a fuel stabilizer, it must be drained into an approved container. Run the engine until it stops from lack of fuel. The use of a fuel stabilizer in the storage container is recommended to maintain freshness.

Engine Oil

While the engine is still warm, change the engine oil.

fuel stabilizer, available as a liquid additive or a

How To Replace The Fuel Filter - Figure

WARNING

Gasoline and its vapors are extremely flammable and explosive. Fire or explosion can cause severe burns or death.

• Keep gasoline 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.

• Before replacing the fuel filter, drain the fuel tank or close the fuel shut-off valve.

• Replacement parts must be the same and installed in the same position as the

original parts.

• If fuel spills, wait until it evaporates before starting engine.

1. Before replacing the fuel filter (A, Figure 14), if equipped, drain the fuel tank or close the fuel shut-off valve. Otherwise, fuel can leak out and cause a fire or explosion.

2. Use pliers to squeeze tabs (B) on the clamps (C), then slide the clamps away from the fuel filter. Twist and pull the fuel lines (D) off of the fuel filter.

3. Check the fuel lines for cracks or leaks. Replace if necessary.

4. Replace the fuel filter with an original equipment replacement filter.

5. Secure the fuel lines with the clamps as shown.

How To Clean The Air Cooling System - Figure

WARNING

Running engines produce heat. Engine parts, especially muffler, become extremely hot.

Severe thermal burns can occur on contact. Combustible debris, such as leaves, grass, brush, etc. can catch fire.

• Allow muffler, engine cylinder and fins to cool before touching.

• Remove accumulated debris from muffler area and cylinder area.

CAUTION: Do not use water to clean the engine. Water could contaminate the fuel system. Use a brush or dry cloth to clean the engine.

This is an air cooled engine. Dirt or debris can restrict air flow and cause the engine to overheat, resulting in poor performance and reduced engine life.

Use a brush or dry cloth to remove debris from the finger guard (A). Keep linkage, springs and controls (B) clean. Keep area around and behind the muffler (C) free of any combustible debris (Figure 15).

Troubleshooting

Need Assistance? Go to BRIGGSandSTRATTON.COM or call 1-800-233-3723.

Specifications

Engine Specifications

Model 120000 Displacement 11.58 ci (190 cc) Bore 2.688 in (68.28 mm) Stroke 2.040 in (51.82 mm) Oil Capacity 18 -- 20 oz (0.54 -- 0.59 L)

Tune-up Specifications *

Model 120000 Spark Plug Gap 0.020 in (0.51 mm) Spark Plug Torque 180 lb-in (20 Nm) Armature Air Gap 0.010 - 0.014 in (0.25 - 0.36 mm) Intake Valve Clearance 0.004 - 0.008 in (0.10 - 0.20 mm) Exhaust Valve Clearance 0.004 - 0.008 in (0.10 - 0.20 mm)

* Engine power will decrease 3.5% for each 1,000 feet (300 meters) above sea level and 1% for each 10° F(5.6° C) above 77° F(25° C). The engine will operate satisfactorily at an angle up to 15°. Refer to the equipment operator’s manual for safe allowable operating limits on slopes.

Common Service Parts n

Service Part Part Number

Air Filter, Oval 697029, 5059 Air Filter Pre-cleaner, Oval 273356 Oil -- SAE 30 100005 Oil Filter 692513 Fuel Additive 5041, 5058 Resistor Spark Plug 692051 Spark Plug Wrench 89838, 5023 Spark Tester 19368 Fuel Filter 298090, 5018

n We recommend that you see any Briggs & Stratton Authorized Dealer for all maintenance and service of the engine and engine parts. Use only genuine Briggs & Stratton parts.

+ 19 hidden pages

Briggs & Stratton Intek 825, Intek 850, Intek 875, 120000 Intek Pro 825 Series Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual