Briggs & Stratton GS2500, Operator'S Manual

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Not for
Reproduction
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Service Spark Plug
Figure
9
Changing the spark plug will help your engine to start easier and run better.
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Check electrode gap with wire feeler gauge and reset spark plug gap to
recommended gap if necessary (see Specifications ).
4. Replace spark plug if electrodes are pitted, burned or porcelain is cracked. Use
the recommended replacement spark plug. See Specifications .
5. Install spark plug and tighten firmly.
NOTICE In some areas, local law requires using a resistor spark plug to suppress
ignition signals. If the engine was originally equipped with a resistor spark plug, use
the same type for replacement.
Inspect Muffler and Spark Arrester
Inspect the muffler for cracks, corrosion, or other damage. Remove the spark arrester,
if equipped, and inspect for damage or carbon blockage. If replacement parts are
required, make sure to use only original equipment replacement parts.
Service Air Cleaner
Figure
10
Your engine will not run properly and may be damaged if you run it with a dirty air
cleaner. Service more often if operating under dirty or dusty conditions.
To service the air cleaner, follow these steps:
1. Unlatch air cleaner cover on top and bottom and remove cover ( A ).
2. Carefully remove air cleaner ( B ) to prevent debris from falling into carburetor.
3. Wash foam air cleaner in liquid detergent and water. Squeeze dry in a clean
cloth.
4. SATURATE foam air cleaner in engine oil and squeeze in a clean cloth to
remove excess oil.
5. Reinstall clean or new foam air cleaner in base ( C ).
6. Assemble air cleaner cover onto base and latch.
Clean Cooling System
Over time debris may accumulate in cylinder cooling fins and cannot be observed
without partial engine disassembly. For this reason, we recommend you have a Briggs
& Stratton authorized dealer clean the cooling system per recommended intervals (see
Maintenance Schedule in the Maintenance section). Equally important is to keep top of
engine free from debris. Also see Cleaning .
Storage
If you will not be using the generator for more than 30 days, use the following
guidelines to prepare it for storage.
Generator Storage
• Clean the generator as outlined in Cleaning .
• Check that cooling air slots and openings on generator are open and unobstructed.
Long Term Storage Instructions
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® Advanced Formula Fuel Treatment & Stabilizer, available
wherever Briggs & Stratton genuine service parts are sold.
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 before storage. 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.
Change Engine Oil
While engine is still warm, drain oil from crankcase. Refill with recommended grade.
See
Changing Engine Oil .
Other Storage Tips
1. DO NOT store fuel from one season to another unless it has been treated as
described in
Long Term Storage Instructions .
2. Replace fuel container if it starts to rust. Rust and/or dirt in fuel can cause
problems if it’s used with this unit.
3. Cover unit with a suitable protective cover that does not retain moisture.
4. Store generator in clean, dry area.
WARNING Contact with muffler area can result in serious burns.
Exhaust heat/gases can ignite combustibles, structures or
damage fuel tank causing a fire.
• DO NOT touch hot parts and AVOID hot exhaust gases.
• Allow equipment to cool before touching.
• Keep at least 1.5 m (5 feet) of clearance on all sides of generator including
overhead.
• Contact the original equipment manufacturer, retailer, or dealer to obtain a spark
arrester designed for the exhaust system installed on this engine.
• Replacement parts must be the same and installed in the same position as the
original parts.
WARNING Fuel and its vapors are extremely flammable and explosive which
could cause burns, fire or explosion resulting in death, serious
injury and/or property damage.
WHEN STORING FUEL OR EQUIPMENT WITH FUEL IN TANK
• Store away from furnaces, stoves, water heaters, clothes dryers or other
appliances that have pilot light or other ignition source because they could ignite
fuel vapors.
WHEN DRAINING FUEL
• Turn generator engine OFF and let it cool at least 2 minutes before removing fuel
cap. Loosen cap slowly to relieve pressure in tank.
• Drain fuel tank outdoors.
• 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.
• DO NOT light a cigarette or smoke.
WARNING Storage covers could cause a fire resulting in death, serious
injury and/or property damage.
• DO NOT place a storage cover over a hot generator.
• Let equipment cool for a sufficient time before placing the cover on the equipment.