Troubleshooting; Warranty - Briggs & Stratton 120000 Operator's Manual

2. Open or remove the cover (B, Figure 14).
3. Carefully remove the foam element (C, Figure 14) from the air filter base.
4. Clean the foam element (C, Figure 14) in liquid detergent and water. Compress the
foam element with your hands in a clean cloth until it is dry.
5. Soak the foam element (C, Figure 14) with clean engine oil. To remove unwanted
engine oil from the foam element, compress it with your hands in a clean cloth.
6. Install the foam element (C, Figure 14) onto the air filter base.
7. Close or install the cover (B, Figure 14) and attach with the fastener(s). Make sure
that the fastener(s) is tight.
Paper Air Filter
1. Loosen or remove the fastener(s), if installed, (A, Figure 15, 16).
2. Open or remove the cover (B, Figure 15, 16).
3. Carefully remove the pre-cleaner (D, Figure 15, 16) and the filter (C) from the air
filter base.
4. Remove the pre-cleaner (D, Figure 15, 16), if installed, from the filter (C).
5. To loosen all unwanted material, lightly tap the filter (C, Figure 15, 16) on a hard
surface. If the filter is very dirty, replace with a new filter.
6. Clean the pre-cleaner (D, Figure 15, 16), if installed, in liquid detergent and water.
Make sure that pre-cleaner is fully dry. Do not add oil to the pre-cleaner.
7. Assemble the dry pre-cleaner (D, Figure 15, 16), if installed, to the filter (C).
8. Install the filter (C, Figure 15, 16) and the pre-cleaner (D) onto the air filter base.
Make sure that the filter is tightly on the air filter base.
9. Close or install the cover (B, Figure 15, 16) and attach with the fastener(s) (A).
Make sure that the fastener(s) is tight.
Servicing the Fuel System
WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in
burns or death.
• 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.
Fuel Filter, if installed
1. Before you replace the fuel filter (A, Figure 17), drain the fuel tank or close the fuel
shut-off valve. If the fuel tank is not drained, fuel leakage can occur and cause a fire
or explosion.
2. Squeeze the tabs (B, Figure 17) on the clamps (C) with pliers. Move the clamps
away from the fuel filter (A).
3. Twist and pull the fuel lines (D, Figure 17) off of the fuel filter.
4. Examine the fuel lines (D, Figure 17) for cracks or leaks. If it is necessary, replace
the fuel lines.
5. Replace the fuel filter (A, Figure 17).
6. Attach the fuel lines (D, Figure 17) with clamps (C).
Storage
Fuel System
WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in
burns or death.
Fuel Storage
• Because pilot lights or other ignition sources can cause explosions, keep fuel or
equipment away from furnaces, stoves, water heaters or other appliances that
have pilot lights.
NOTE: Some models have a fuel tank for vertical storage that will let the engine tilt for
maintenance or storage (C, Figure 18). Do not keep in vertical position with the fuel tank
filled above the bottom of the fuel level indicator (D), if equipped. For more instructions,
refer to the equipment manual.
Keep the engine level (normal operating position). Fill the fuel tank (A, Figure 6) with
fuel. For fuel expansion, do fill above the fuel tank neck (B).
Fuel can become stale when kept in a storage container for more than 30 days. The
use of an alcohol-free fuel stabilizer and ethanol treatment in the fuel storage container
is recommended. This keeps fuel fresh and decreases fuel-related problems or
contamination in the fuel system.
8
When you fill the fuel container with fuel, add an alcohol-free fuel stabilizer to the
specified instructions by the manufacturer. If gasoline in the engine has not been treated
with a fuel stabilizer, it must be drained into an approved container. Operate the engine
until it is out of fuel.
Engine Oil
While the engine is still warm, change the engine oil. Refer to Change the Engine Oil
section.

Troubleshooting

Assistance
For assistance, contact your local dealer or go to BRIGGSandSTRATTON.COM or call
1-800-444-7774 (in USA).
Specifications and Service Parts
Specifications
120000, 123P00,
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 (,54 - ,59 L)
Spark Plug Gap .020 in (,51 mm)
Spark Plug Torque 180 lb-in (20 Nm)
Armature Air Gap .010 - .014 in
(,25 - ,36 mm)
Intake Valve Clearance .004 - .008 in
(,10 - ,20 mm)
Exhaust Valve Clearance .004 - .008 in
(,10 - ,20 mm)
Service Parts
To purchase Briggs & Stratton service parts, find an Authorized
Service Dealer at BRIGGSandSTRATTON.COM. You will need your
identification number (model - type - trim). Refer to the Features and
Controls section to find your engine identification number.
Power Ratings
The gross power rating for individual gasoline engine models is labeled in accordance
with SAE (Society of Automotive Engineers) code J1940 Small Engine Power & Torque
Rating Procedure, and is rated in accordance with SAE J1995. Torque values are
derived at 2600 RPM for those engines with "rpm" called out on the label and 3060 RPM
for all others; horsepower values are derived at 3600 RPM. The gross power curves
can be viewed at www.BRIGGSandSTRATTON.COM. Net power values are taken with
exhaust and air cleaner installed whereas gross power values are collected without
these attachments. Actual gross engine power will be higher than net engine power and
is affected by, among other things, ambient operating conditions and engine-to-engine
variability. Given the wide array of products on which engines are placed, the gasoline
engine may not develop the rated gross power when used in a given piece of power
equipment. This difference is due to a variety of factors including, but not limited to, the
variety of engine components (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 engine.

Warranty

®
Briggs & Stratton Engine Warranty
Effective August 2022
Limited Warranty
Briggs & Stratton warrants that, during the warranty period specified below, it will
repair or replace, free of charge, with a new, reconditioned or re-manufactured part,
at the sole discretion of Briggs & Stratton, any part that is defective in material or
workmanship or both. Transportation charges on product submitted for repair or
replacement under this warranty must be borne by purchaser. This warranty is effective
for and is subject to the time periods and conditions stated below. For warranty
service, find the nearest Authorized Service Dealer in our dealer locator map at
BRIGGSandSTRATTON.COM. The purchaser must contact the Authorized Service
Dealer, and then make the product available to the Authorized Service Dealer for
inspection and testing.
Models: Model: 140000
125P00
13.60 ci (223 cc)
2.913 in (74 mm)
2.040 in (51,82 mm)
18 - 20 oz (,54 - ,59 L)
.020 in (,51 mm)
180 lb-in (20 Nm)
.010 - .014 in
(,25 - ,36 mm)
.004 - .008 in
(,10 - ,20 mm)
.004 - .008 in
(,10 - ,20 mm)
BRIGGSandSTRATTON.COM