6.
Remove the pre-cleaner (E, Figure 13), from the air filter (F).
7.
Clean the pre-cleaner (E, Figure 13) in liquid detergent and water. Let the pre-
cleaner fully air dry. DO NOT lubricate the pre-cleaner.
8.
Assemble the dry pre-cleaner (E, Figure 13) to the air filter (F).
9.
Install the air filter (E, Figure 13) and attach with the retainer (D) and fastener(s)(C).
10. Install the cover (B, Figure 13) 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.
•
Before you clean or replace the fuel filter, drain the fuel tank or close the fuel
shut-off valve.
•
If fuel spills, wait until it dries before you start the engine.
•
Replacement parts must be of the same design and installed in the same
position as the original parts. Other parts could result in damage or an injury.
Fuel Filter, if installed
1.
Before you clean or replace the fuel filter (A, Figure 14), drain the fuel tank or close
the fuel shut-off valve. If the fuel tank is not drained, fuel leakage could occur and
cause a fire or explosion.
2.
Use pliers to squeeze tabs (B, Figure 14) on the clamps (C), then move the clamps
away from the fuel filter (A). Twist and pull the fuel lines (D) off of the fuel filter.
3.
Examine the fuel lines (D, Figure 14) for cracks or leaks. Replace if necessary.
4.
Replace the fuel filter (A, Figure 14) with an original equipment replacement filter.
5.
Attach the fuel lines (D, Figure 14) with clamps (C).
Servicing the Cooling System
WARNING
During operation, the engine and muffler become hot. If you touch a hot engine,
thermal burns can occur.
Combustible debris, such as leaves, grass, and brush can catch fire.
•
Before you touch the engine or muffler, stop the engine and wait two (2)
minutes. Make sure that the engine and muffler are safe to touch.
•
Remove debris from the muffler and engine.
NOTICE
Do not use water to clean the engine. Water could cause contamination of the fuel
system. Use a brush or dry cloth to clean the engine.
This is an air cooled engine. Dirt or debris can prevent air flow and cause the engine to
become too hot and result in unsatisfactory performance and decreased 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 combustible
debris.
4.
Make sure the oil cooler fins, if equipped, are clean.
After a period of time, the cylinder cooling fins can collect debris and cause the engine
to overheat. This unwanted material 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
Fuel System
Refer to Figure: 15.
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.
Keep the engine level (normal operating position). Fill the fuel tank (A, Figure 15) with
fuel. For fuel expansion, do not 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 to prevent fuel degradation and keep the fuel fresh.
When you fill the fuel container with fuel, add an alcohol-free fuel stabilizer as specified
by the manufacturer's instructions. 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
Specifications and Service Parts
Models: 613700, 61E900, 61G900
Displacement
Bore
Stroke
Oil Capacity
Spark Plug Gap
Spark Plug Torque
Armature Air Gap
Intake Valve Clearance
Exhaust Valve Clearance
Service Parts - Models: 613700, 61E900, 61G900
Service Part
Paper Air Filter
Pre-cleaner
Oil - SAE 30
Oil Filter
Fuel Filter
Resistor Spark Plug
Long Life Platinum Spark Plug
Spark Plug Wrench
Spark Tester
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 permitted
operating limits on slopes.
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.
60.60 ci (993 cc)
3.366 in (85,5 mm)
3.406 in (86,5 mm)
78 - 80 oz (2,3 - 2,4 L)
.030 in (,76 mm)
180 lb-in (20 Nm)
.005 - .008 in (,13 - ,20 mm)
.004 - .006 in (,10 - ,15 mm)
.007 - .009 in (,18 - ,23 mm)
Part Number
692519
692520
100028
842921
695666
491055S
5066K
19576S
84003327
9