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3.
After the oil has drained, install the quick oil drain cap (I, Figure 16). Attach the
quick oil drain hose (H) to the side of the engine.
Add Oil
•
Make sure the engine is level.
•
Clean the oil fill area of all debris.
Refer to the Specifications section for oil capacity.
•
1.
Remove the dipstick (A, Figure 6). Remove oil from the dipstick with a clean cloth.
2.
Slowly add oil into the engine oil fill (C, Figure 6). Do not put too much oil in the
engine oil fill. Wait one minute and then check the oil level.
NOTE: Do not add oil at the quick oil drain, if equipped.
3.
Install and tighten the dipstick (A, Figure 6).
4.
Remove the dipstick and check the oil level. The correct oil level is at the top of the
full indicator (B, Figure 6) on the dipstick.
5.
Install and tighten the dipstick (A, Figure 6).
6.
Connect the spark plug wire(s) to the spark plug(s). See Remove Oil section.
Change the Oil Filter
Drain the oil from the engine. Refer to the Remove Oil section.
1.
2.
Remove the oil filter (H, Figure 17) and discard correctly.
3.
Before you install the new oil filter, lightly lubricate the oil filter gasket with clean oil.
4.
Install the oil filter by hand until the gasket touches the oil filter adapter, then tighten
the oil filter 1/2 to 3/4 turns.
5.
Add oil. Refer to the Add Oil section.
6.
Start and operate the engine. When the engine is warm, do a check for oil leaks.
7.
Stop the engine. Make sure that oil level is at the top of the full indicator on the
dipstick. Refer to the Add Oil section.
Servicing the Air Filter
WARNING
Fuel vapors are flammable and explosive. Fire or explosion could result in burns
or death.
•
Do not start and operate 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 could result in
damage to the filter and solvents will dissolve the filter.
See the Maintenance Schedule for servicing requirements.
Different models will use a foam or a paper filter. Some models could also have an
optional pre-cleaner that can be cleaned and used again. Compare the illustrations in
this manual with the type installed on your engine and service as follows.
Cyclonic Air Filter with Safety Filter
1.
Open the fastener(s) (A, Figure 18) and remove the cover (B).
2.
Remove the air filter (C, Figure 18).
3.
To loosen debris, lightly tap the air filter on a hard surface. If the air filter is dirty,
replace it with a new air filter.
4.
To remove the safety filter (D, Figure 18), if installed, carefully pull it away from the
air cleaner body (E). Make sure that dirt or debris does not go into the engine.
5.
Install the new safety filter (D, Figure 18) in the air cleaner body (E).
6.
Install the air filter (C, Figure 18) above the safety filter (D).
7.
Install the cover (B, Figure 18) and close the fastener(s) (A).
Low Profile Air Filter
1.
Loosen the fastener(s) (A, Figure 19).
2.
Remove the air filter cover (B, Figure 19).
3.
To remove the filter, (C, Figure 19), lift the end of the filter.
4.
To loosen debris, lightly tap the filter on a hard surface. If the filter is dirty, replace it
with a new filter.
5.
Remove the pre-cleaner (D, Figure 19), if equipped, from the filter (C).
6.
Clean the pre-cleaner (D, Figure 19), if equipped, in liquid detergent and water. Let
the pre-cleaner to fully air dry. DO NOT lubricate the pre-cleaner.
7.
Assemble the dry pre-cleaner (D, Figure 19), if equipped, to the filter (C).
8.
Install the filter (C, Figure 19) and pre-cleaner (D), if equipped, into the filter base
(E), and push down until the filter snaps into position.
10
9.
Install the air filter cover (B, Figure 19) and attach with fastener(s) (A). Make sure
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 20), 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 20) on the clamps (C) with pliers. Move the clamps
away from the fuel filter (A).
3.
Twist and pull the fuel lines (D, Figure 20) off of the fuel filter.
4.
Examine the fuel lines (D, Figure 20) for cracks or leaks. If it is necessary, replace
the fuel lines.
5.
Replace the fuel filter (A, Figure 20).
6.
Attach the fuel lines (D, Figure 20) with clamps (C).
Service 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 stop the airflow and cause the engine to
become too hot and result in unsatisfactory performance and decreased engine life.
Models with Cyclonic Air Filter System
1.
Use a brush or dry cloth to remove debris from the air intake area (A, Figure 21).
2.
Keep linkage, springs, and controls (B, Figure 21) clean.
3.
Keep the area around and behind the muffler free of combustible debris.
4.
Make sure the oil cooler fins (C, Figure 21) are free of dirt and debris.
5.
Loosen the fasteners (D, Figure 22) and remove the air intake grille (E). To get
access to all the fasteners, if necessary, remove fasteners (H) and air filter strap (J).
Pivot the air filter (K) to get access to the fastener.
6.
Loosen the fasteners (F, Figure 22) and open the debris access panels (G).
Remove grass and debris on the cylinders.
7.
Close the debris access panels (G, Figure 22) and attach with the fasteners (F).
8.
Install air filter strap (J, Figure 22) and attach with fasteners (H).
9.
Install the air intake grille (E, Figure 22) and attach with the fasteners (D).
After a period of time, debris can collect in the cylinder cooling fins and cause the engine
to overheat. You cannot remove debris without partial disassembly of the engine. Make
sure that a Briggs & Stratton Authorized Dealer inspect and clean the air cooling system
as recommended in the Maintenance Schedule.
Models with Low Profile Air Filter System
1.
Use a brush or dry cloth to remove debris from the air intake area (A, Figure 23).
2.
Keep linkage, springs, and controls (B, Figure 23) clean.
3.
Keep the area around and behind the muffler free of combustible debris.
4.
Make sure the oil cooler fins (C, Figure 23) are free of dirt and debris.
5.
Loosen the fastener(s) (D, Figure 23) and remove the air intake grille (E).
6.
Remove grass and debris that has collected on the cylinders.
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