Briggs & Stratton I/C Gaseous 310000 Manuel De L'opérateur page 9

Change The Oil Filter (if equipped)
Some models are equipped with oil filter. For replacement intervals, see the
Maintenance chart.
1. Drain the oil from the engine. See Remove Oil section.
2. Remove the oil filter (C) and dispose of properly. See Figure 9.
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
the oil filter 1/2 to 3/4 turns.
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 top of the full indicator (F)
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 (D) and wipe with a clean cloth (Figure 6).
2. Pour the oil slowly into the engine oil fill (E). 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 top of the full indicator
(F) on the dipstick.
5. Install and tighten the dipstick.
How To Service The Air Filter - Figure 11
WARNING
Gaseous 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 (if equipped) or the

air filter (if equipped) removed.
NOTICE: Do not use pressurized air or solvents to clean the filter. Pressurized air can
damage the filter and solvents will dissolve the filter.
The air filter system uses either a flat or oval cartridge. Some models are also equipped
with a pre-cleaner that can be washed and reused.
Flat Air Filter (Figure 11)
1. Pull up on the cover handle (A, Figure 11). Rotate the cover handle toward the
engine and then remove the cover (B).
2. Remove the pre-cleaner (C), if equipped, 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 and the filter into the engine base (E).
6. Align the tabs (F) on the cover with the slots (G) in the blower housing. Rotate the
cover handle back and push down to lock in place.
Cylindrical Cartridge Air Filter (Figure 12)
1. Remove the fasteners (A) and the air filter cover (B). See Figure 12.
2. To remove the filter (C), lift the end of the filter and then pull the filter off the intake
(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. Install the filter on the intake. Push the end of the filter into the base as shown. Make
sure filter fits securely in the base.
5. Install air filter cover and secure with fasteners.
How To Clean The Air Cooling System - Figure 10
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.
en
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/rotating screen (A).
Keep linkage, springs and controls (B) clean. Keep the area around and behind the
muffler (C) free of any combustible debris (Figure 10).
Storage
When Storing Equipment With Fuel In Tank

Engine Oil
While the engine is still warm, change the engine oil.
Troubleshooting
Need Assistance? Go to BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in
USA).
Specifications
12
Engine Specifications
Model
Displacement
Bore
Stroke
Oil Capacity -- with filter
Tune-up Specifications *
Model
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.
Common Service Parts n
Service Part
Air Filter, Flat
Air Filter Pre-cleaner, Flat
Air Filter, Cylindrical
Oil Filter
Oil -- SAE 30 (20 oz, 0.6 L)
Oil -- SAE 30 (48 oz, 1.4 L)
Resistor Spark Plug
Long Life Platinum Spark Plug
Spark Plug Wrench
Spark Tester
n We recommend that you see any Briggs & Stratton Authorized Dealer for all
maintenance and service of the engine and engine parts.
WARNING
Gaseous vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
Store away from furnaces, stoves, water heaters or other appliances that have
pilot lights or other ignition sources because they can ignite gaseous vapors.
310000
30.52 ci (500 cc)
3.563 in (90.49 mm)
3.062 in (77.77 mm)
46 -- 48 oz (1.36 -- 1.40 L)
310000
0.030 in (0.76 mm)
180 lb-in (20 Nm)
0.010 - 0.014 in (0.25 - 0.36 mm)
0.003 - 0.005 in (0.08 - 0.13 mm)
0.005 - 0.007 in (0.13 - 0.18 mm)
Part Number
790263
697015
797427
492932, 5049
100005
100028
491055
5066
89838, 5023
19368
9