Warranty - Briggs & Stratton 83100 Operator's Manual

9. Install the foam element (C, Figure 11) to air filter base (G) and onto stud (H).
Make sure foam element is properly assembled to air filter base and secure with
washer (E) and fastener (D).
10. Install the cover (B, Figure 11) and secure with fastener(s) (A). Make sure the
fastener(s) is tight.
Paper Air Filter
1. Loosen the fastener(s) (A, Figure 12).
2. Remove the cover (B, Figure 12).
3. Remove the fastener (E, Figure 12).
4. To prevent debris from falling into the carburetor, carefully remove the pre-cleaner
(D, Figure 12) and the filter (C) from the air filter base (F).
5. To loosen debris, gently tap the filter (C, Figure 12) on a hard surface. If the filter is
excessively dirty, replace with a new filter.
6. Remove the pre-cleaner (D, Figure 12) from the filter (C).
7. Wash the pre-cleaner (D, Figure 12) in liquid detergent and water. Allow the pre-
cleaner to throughly air dry. Do not oil the pre-cleaner.
8. Assemble the dry pre-cleaner (D, Figure 12) to the filter (C).
9. Install the filter (C, Figure 12) and the pre-cleaner (D) to air filter base (F) and onto
stud (G). Make sure the filter is properly assembled to air filter base and secure
with fastener (E).
10. Install the cover (B, Figure 12) and secure with the fastener(s) (A). Make sure the
fastener(s) is tight.
Service Cooling System
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.
NOTICE 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.
1. Use a brush or dry cloth to remove debris from the air intake grille.
2. Keep linkage, springs and controls clean.
3. Keep the area around and behind the muffler, if equipped, free of any combustible
debris.
4. Make sure the oil cooler fins, if equipped, are free of dirt and debris.
After a period of time, debris can accumulate in the cylinder cooling fins and cause the
engine to overheat. This debris cannot be removed without partial disassembly of the
engine. Have a Briggs & Stratton Authorized Service Dealer inspect and clean the air
cooling system as recommended in the Maintenance Schedule.
Storage
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
When Storing Fuel 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 fuel vapors.
Fuel System
See Figure: 13
Store the engine level (normal operating position). Fill fuel tank (A, Figure 13) with fuel.
To allow for expansion of fuel, do not overfill above the fuel tank neck (B).
Fuel can become stale when kept in a storage container for more than 30 days. Each
time you fill the container with fuel, add fuel stabilizer to the fuel as specified by the
manufacturer's instructions. This keeps fuel fresh and decreases fuel-related problems
or contamination in the fuel system.
It is not necessary to drain fuel from the engine when fuel stabilizer is added as
instructed. Before storage, turn the engine ON for 2 minutes to move the fuel and
stabilizer through the fuel system.
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. See the Change Engine Oil
section.
Troubleshooting
For assistance, contact your local dealer or go to BRIGGSandSTRATTON.com or call
1-800-233-3723 (in USA).
Specifications
Model: 83100
Displacement
Bore
Stroke
Oil Capacity
Gear Reduction Oil Type
Gear Reduction Oil Capacity
Spark Plug Gap
Spark Plug Torque
Armature Air Gap
Intake Valve Clearance
Exhaust Valve Clearance
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.
Service Parts - Model: 83100
Service Part
Standard Air Filter
High Capacity Air Filter
Spark Plug
Spark Plug Wrench
Spark Tester
We recommend that you see any Briggs & Stratton Authorized Dealer for all
maintenance and service of the engine and engine parts.
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

7.74 ci (127 cc)
2.441 in (62 mm)
1.654 in (42 mm)
18 - 20 oz (,54 - ,59 L)
80W-90
4 oz (,12 L)
.030 in (,76 mm)
180 lb-in (20 Nm)
.006 - .010 in (,15 - ,25 mm)
.005 - .007 in (,13 - ,18 mm)
.005 - .007 in (,13 - ,18 mm)
Part Number
797258
796970
797235
89838, 5023
19368
9