Briggs & Stratton QUANTUM 120000 - Manual (Page 9)

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Standard Air Filter - Figure 15
The air cleaner system uses a foam element that can be washed and reused.
1. Move the slide lock (A) to the unlock position. Open the cover (B). See Figure 15.
2. Remove the foam element (C).
3. Wash the foam element in liquid detergent and water. Squeeze dry the foam element
in a clean cloth.
4. Saturate the foam element with clean engine oil. To remove the excess engine oil,
squeeze the foam element in a clean cloth.
5. Install the foam element into the air filter base.
6. Close the cover and move the slide lock to the locked position.
High Capacity Air Filter - Figure 16
The air cleaner system uses a pleated filter with an optional pre-cleaner. The pre-cleaner
can be washed and reused.
1. Loosen the fastener (A) that holds the cover (B, Figure 16).
2. Open the cover and remove the pre-cleaner (C) 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 to the filter with the lip (E) of the pre-cleaner on the
bottom of the filter pleats.
6. Install the filter.
7. Install the cover tabs (F) into the slots (G).
8. Close the cover and secure with the fastener.
How To Replace The Fuel Filter - Figure 6
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
• Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition
sources.
• Check fuel lines, tank, cap, and fittings frequently for cracks or leaks.
Replace if necessary.
• Before cleaning or replacing the fuel filter, drain the fuel tank or close the fuel
shut-off valve.
• Replacement parts must be the same and installed in the same position as the
original parts.
• If fuel spills, wait until it evaporates before starting engine.
1. Before replacing the fuel filter (A, Figure 6), if equipped, drain the fuel tank or close
the fuel shut-off valve. Otherwise, fuel can leak out and cause a fire or explosion.
2. Use pliers to squeeze tabs (B) on the clamps (C), then slide the clamps away from
the fuel filter. Twist and pull the fuel lines (D) off of the fuel filter.
3. Check the fuel lines for cracks or leaks. Replace if necessary.
4. Replace the fuel filter with an original equipment replacement filter.
5. Secure the fuel lines with the clamps as shown.
How To Clean The Air Cooling System - Figure 14
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.
WARNING
• 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.
Use a brush or dry cloth to remove debris from the finger guard (A). Keep linkage,
springs and controls (B) clean. Keep the area around and behind the muffler (C) free of
any combustible debris (Figure 14).
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
Fuel can become stale when stored over 30 days. Stale fuel causes acid and gum
deposits to form in the fuel system or on essential carburetor parts. To keep fuel fresh,
use Briggs & Stratton FRESH START ® fuel stabilizer, available as a liquid additive or a
drip concentrate cartridge.
There is no need to drain gasoline from the engine if a fuel stabilizer is added according
to instructions. Run the engine for 2 minutes to circulate the stabilizer throughout the fuel
system. The engine and fuel can then be stored up to 24 months.
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.
NOTICE: Store the engine level (normal operating position). If the engine is tipped for
storage, the fuel tank must be empty and the spark plug side must be up. If the fuel
tank is not empty and if the engine is tipped in any other direction, it may be difficult to
start due to oil or gasoline contaminating the air filter and/or the spark plug.
Troubleshooting
Need Assistance? Go to BRIGGSandSTRATTON.COM or call 1-800-233-3723.
Specifications
Engine Specifications
Model 120000
Displacement 11,57 ci (190 cc)
Bore 2,687 in (68,25 mm)
Stroke 2,047 in (52 mm)
Oil Capacity 18 -- 20 oz (0,54 -- 0,59 L)
Tune-up Specifications *
Model 120000
Spark Plug Gap 0,030 in (0,76 mm)
Spark Plug Torque 180 lb-in (20 Nm)
Armature Air Gap 0,006 - 0,010 in (0,15 - 0,26 mm)
Intake Valve Clearance 0,005 - 0,007 in (0,13 - 0,18 mm)
Exhaust Valve Clearance 0,007 - 0,009 in (0,18 - 0,23 mm)
* 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 Part Number
Air Filter, Standard 797301
Air Filter, High Capacity 491588, 5043
Air Filter Pre-cleaner, Flat 493537, 5064
Oil -- SAE 30 100005
Fuel Additive 5041, 5058
Resistor Spark Plug 802592, 5095
Long Life Platinum Spark Plug 5062
Spark Plug Wrench 89838, 5023
Spark Tester 19368
Fuel Filter 298090, 5018
n We recommend that you see any Briggs & Stratton Authorized Dealer for all
maintenance and service of the engine and engine parts.
Not for Reproduction