Predator 4550 Watt, 59303 - Inverter Generator Manual (2024)

Contents

WARNING SYMBOLS AND DEFINITIONS
	This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
	Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
	Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
	Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
	Addresses practices not related to personal injury.

Symbol Definitions

Symbol	Property or Statement
RPM	Revolutions Per Minute
HP	Horsepower
AWG	American Wire Gauge
	WARNING marking concerning Risk of Eye Injury. Wear ANSI-approved safety goggles with side shields.
	Read the manual before set-up and/or use.
	WARNING marking concerning Risk of Hearing Loss. Wear hearing protection.
	WARNING marking concerning Risk of Respiratory Injury. Operate engine OUTSIDE and far away from windows, doors, and vents.
	WARNING marking concerning Risk of Fire while handling fuel. Do not smoke while handling fuel.
	WARNING marking concerning Risk of Fire. Do not refuel while operating. Keep flammable objects away from engine.

Read all instructions.
Failure to follow all instructions listed below may result in fire, serious injury and/or DEATH. The warnings and precautions discussed in this manual cannot cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator.
SAVE THESE INSTRUCTIONS

Setup precautions

1. Gasoline fuel and fumes are flammable, and potentially explosive. Use proper fuel storage and handling procedures. Do not store fuel or other flammable materials nearby.
2. Have multiple ABC class fire extinguishers nearby.
3. Operation of this generator may create sparks that can start fires around dry vegetation. A spark arrestor may be required. The operator should contact local fire agencies for laws or regulations relating to fire prevention requirements.
4. Set up and use only on a flat, level, well-ventilated surface.
5. All connections and conduits from the Generator to the load must only be installed by trained and licensed electricians, and in compliance with all relevant local, state, and federal electrical codes and standards, and other regulations where applicable.
6. Connections for standby power to a building electrical system must be made by a qualified electrician. The connection must isolate the Generator power from utility power, and must comply with all applicable laws and electrical codes.

7. Wear ANSI-approved safety goggles, heavy-duty work gloves, and dust mask/respirator during set up.
8. Use only lubricants and fuel recommended in the Specifications chart of this manual.
9. Improper connections to a building electrical system can allow electrical current from the Generator to backfeed into the utility lines. Such backfeed may electrocute utility company workers or others who contact the lines during a power outage, and the Generator may explode, burn, or cause fires when utility power is restored. Consult the utility company and a qualified electrician if intending to use the Generator for back up power.
10. A transfer switch should be installed by a licensed electrician in compliance with all applicable laws and electrical codes.
11. Do not operate the Generator before grounding. The Generator must be earth-grounded in accordance with all relevant electrical codes and standards before operation.
12. Install carbon monoxide alarm(s) with battery backup in nearby buildings according to manufacturer's instructions.

Operating precautions

1. 
   CARBON MONOXIDE HAZARD Using a generator indoors CAN KILL YOU IN MINUTES.
   Generator exhaust contains carbon monoxide. This is a poison you cannot see or smell.
   
   NEVER use inside a home or garage, EVEN IF doors and windows are open.
   
   Only use OUTSIDE and far away from windows, doors, and vents.

2. CARBON MONOXIDE SHUTOFF
   
   TO PREVENT SERIOUS INJURY AND DEATH FROM CARBON MONOXIDE INHALATION: The Carbon Monoxide sensor is an additional layer of protection only. Do not use the Generator in any area or situation that will allow carbon monoxide to accumulate.

• FLASHING RED LIGHT:
  Dangerous levels of carbon monoxide gas have built up and generator will shutoff. Leave immediately until area has aired out. Move Generator to well-ventilated area before operation.
• FLASHING YELLOW LIGHT:
  Carbon monoxide sensor malfunction. Sensor needs service. Do not use the Generator until the sensor is working properly. For technical questions, please call 1-888-866-5797.
  NOTE: Yellow light flashes once after starting to indicate passing selfcheck and is functioning normally.

Carbon Monoxide sensor must only be serviced by qualified technician to restore it to original settings. Do not modify or tamper with the Carbon Monoxide sensor. Not following these instructions can result in death or serious injury due to Carbon Monoxide sensor malfunction.

3. Never use a generator indoors, including in garages, basem*nts, crawl spaces and sheds. Opening doors and windows or using fans will NOT prevent carbon monoxide build up in the home.
4. When using generators, keep them outdoors and far away from open doors, windows, and vents to avoid toxic levels of carbon monoxide from building up indoors.
5. If you start to feel sick, dizzy, or weak while using a generator, get to fresh air right away. The carbon monoxide from generators can quickly lead to full incapacitation and death.
6. Keep children away from the generator, especially while it is operating.
7. Keep all spectators at least six feet from the engine during operation.
8. Fire Hazard! Do not fill gas tank while engine is running. Do not operate if gasoline has been spilled. Clean spilled gasoline before starting engine. Do not operate near pilot light or open flame.
9. Do not touch engine during use. Let engine cool down after use.
10. Never store fuel or other flammable materials near the engine.
11. If the plugged in product operates abnormally or unusually slow, immediately stop using the generator as a power source. Read and adhere to the instruction manual of the product to be powered to make sure that it can be safely and efficiently powered by a portable generator.
12. Before connecting an appliance or power cord to the generator: Make sure that it is in good working order. Faulty appliances or power cords can create a potential for electrical shock.
13. Do not exceed the running wattage of the generator. Make sure that the total electrical rating of the all of the tools or appliances plugged into the generator at the same time does not exceed that of the generator. Check that the startup surge will not be beyond the limit of the generator.
14. Avoid substantially overloading which will trip the circuit breaker. Slightly overloading the generator may not trip the circuit breaker, but will lead to premature generator failure.
15. Do not attempt to connect or disconnect load connections while standing in water, or on wet or soggy ground.
16. Do not touch electrically energized parts of the generator and interconnecting cables or conductors with any part of the body, or with any non-insulated conductive object.
17. Connect the generator only to a load that is compatible with the electrical characteristics and running wattage of the generator.
18. Insulate all connections and disconnected wires.
19. Guard against electric shock. Prevent body contact with grounded surfaces such as pipes, radiators, ranges, and refrigerators.
20. Only use a suitable means of transport and lifting devices with sufficient weight bearing capacity when transporting the generator.
21. Secure the generator on transport vehicles to prevent it from rolling, slipping, and tilting.
22. Industrial applications must follow OSHA requirements.
23. Do not leave the generator unattended when it is running. Turn off the generator (and remove safety keys, if available) before leaving the work area.
24. The generator can produce high noise levels. Prolonged exposure to noise levels above 85 dBA is hazardous to hearing. Wear ear protection when operating the generator or when working nearby while it is operating.
25. Keep access doors on enclosures locked.
26. Wear ANSI-approved safety glasses and hearing protection during use.
27. People with pacemakers should consult their physician(s) before use. Electromagnetic fields in close proximity to a heart pacemaker could cause pacemaker interference or pacemaker failure. Caution is necessary when near the engine's magneto or recoil starter.
28. Use only accessories that are recommended by Harbor Freight Tools for your model. Accessories that may be suitable for one generator may become hazardous when used on another generator.
29. Do not operate in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Gasoline-powered engines may ignite the dust or fumes.
30. Stay alert, watch what you are doing and use common sense when operating this generator. Do not use while tired or under the influence of drugs, alcohol or medication.
31. Dress properly. Do not wear loose clothing or jewelry. Keep hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.
32. Parts, especially exhaust system components, get very hot during use. Stay clear of hot parts.
33. Do not cover the generator during operation.
34. Keep the generator and surrounding area clean at all times. Keep generator at least 5 feet from combustible objects.
35. Do not smoke, or allow sparks, flames, or other sources of ignition around the generator, especially when refuelling.
36. Use the generator, accessories, etc., in accordance with these instructions and in the manner intended for the particular type of generator, taking into account the working conditions and the work to be performed. Use of the generator for operations different from those intended could result in a hazardous situation.
37. Do not operate the generator with known leaks in the engine's fuel system.
38. When spills of fuel or oil occur, they must be cleaned up immediately. Dispose of fluids and cleaning materials as per any local, state, or federal codes and regulations. Store oil rags in a bottom-ventilated, covered, metal container.
39. Keep hands and feet away from moving parts. Do not reach over or across generator while operating.
40. Before use, check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the generator's operation. If damaged, have the generator serviced before using. Many accidents are caused by poorly maintained generators.
41. Use the correct generator for the application. Do not modify the generator and do not use the generator for a purpose for which it is not intended.
42. Extension Cord - Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized extension cord will cause a drop in line voltage resulting in loss of power and overheating.

The table below shows the correct cord size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge.

The smaller the gauge number, the heavier the cord.

1. Follow parallel Kit instructions provided with Kit for connection and use of a parallel Kit.
2. Only connect two identical Inverter Generators together using a Parallel Kit.
3. Connect Parallel Kit only to terminals marked "Parallel Outlets" on the front of the Generator.
4. Do not remove or connect a Parallel Kit while the Generator is running.
5. Do not use a Parallel Kit that is attached to only one Generator.

Service precautions

1. Before service, maintenance, or cleaning:
   1. Unplug all devices from the generator.
   2. Turn the Switch to its "OFF" position.
   3. Close the Fuel Valve.
   4. Allow the engine to completely cool.
   5. Then, remove the spark plug cap from the spark plug.
2. Keep all safety guards in place and in proper working order. Safety guards include muffler, air cleaner, mechanical guards, and heat shields, among other guards.
3. Keep all electrical equipment clean and dry. Replace any wiring where the insulation is cracked, cut, abraded, or otherwise degraded. Replace terminals that are worn, discolored, or corroded. Keep terminals clean and tight.
4. Do not alter or adjust any part of the generator or its engine that is sealed by the manufacturer or distributor. Only a qualified service technician may adjust parts that may increase or decrease governed engine speed.
5. Wear ANSI-approved safety goggles, heavy-duty work gloves, and dust mask/respirator during service.
6. Maintain labels and nameplates on the generator. These carry important information. If unreadable or missing, contact Harbor Freight Tools for a replacement.
7. Have the generator serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the generator is maintained. Do not attempt any service or maintenance procedures not explained in this manual or any procedures that you are uncertain about your ability to perform safely or correctly.
8. Store generator out of the reach of children.
9. Follow scheduled engine and generator maintenance.

Refueling:

1. Do not refill the fuel tank while the engine is running or hot.
2. Do not smoke, or allow sparks, flames, or other sources of ignition around the generator, especially when refuelling.
3. Do not fill fuel tank to the top.
   Leave a little room for the fuel to expand as needed.
4. Refuel in a well-ventilated area only.
5. Wipe up any spilled fuel and allow excess to evaporate before starting engine. To prevent FIRE, do not start the engine while the smell of fuel hangs in the air.

SAVE THESE INSTRUCTIONS.

Set Up

Read the ENTIRE IMpORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product.

TO PREVENT SERIOUS INJURY AND FIRE: Operate only with proper spark arrestor installed.

Operation of this generator may create sparks that can start fires around dry vegetation.
A spark arrestor may be required.
The operator should contact local fire agencies for laws or regulations relating to fire prevention requirements.

At high altitudes, the engine's carburetor, governor, and any other parts that control the fuel-air ratio will need to be adjusted by a qualified mechanic to allow efficient high-altitude use and to prevent damage to the engine and any other devices used with this product.

Grounding

1. The Generator must be properly grounded in accordance with all relevant electrical codes and standards before operation. Have the unit grounded by a qualified electrician if you are not qualified to do so.
2. To ground the Generator, connect a #6 AWG grounding wire (not included) from the Grounding Terminal on the Control Panel to a grounding rod (not included). The grounding rod must be an earth-driven copper or brass rod (electrode) which can adequately ground the Generator.
3. Refer to local regulations for ground source information.

NOTE: There is a permanent conductor between the portable generator stator winding (Neutral Conductor) and the frame.

High Altitude Operation Above 3000 feet

TO PREVENT SERIOUS INJURY FROM FIRE:
Follow instructions in a well-ventilated area away from ignition sources.
If the engine is hot from use, shut the engine off and wait for it to cool before proceeding. Do not smoke.

NOTICE: Warranty void if necessary adjustments are not made for high altitude use.

At high altitudes, the engine's carburetor, governor, and any other parts that control the fuel-air ratio will need to be adjusted by a qualified mechanic to allow efficient high-altitude use and to prevent damage to the engine and any other devices used with this product. The fuel system on this engine may be influenced by operation at higher altitudes. Proper operation can be ensured by installing an altitude kit at altitudes higher than 3000 ft. above sea level. At elevations above 8000 ft, the engine may experience decreased performance, even with the proper main jet. Operating this engine without the proper altitude kit installed may increase the engine's emissions and decrease fuel economy and performance. The kit should be installed by a qualified mechanic.

Note: Not all Generator models have a Solenoid. Skip those steps if a Solenoid is not present.

1. Turn off the engine.
2. Close the fuel valve.
3. Place a bowl under the fuel cup to catch any spilled fuel.
4. Unthread the screws holding the solenoid in place.

Carburetor bowl may have gas in it which will leak upon removing the solenoid/bolt.

5. Disconnect the solenoid and solenoid seal from the bolt.
6. Unthread the bolt holding the fuel cup.
7. Remove the bolt, Bolt Seal, fuel cup, Fuel Cup Seal and Main Jet from the body of the carburetor assembly. A carburetor screwdriver (not included) is needed to remove and install the Main Jet.

Note: The mixing tube is held in place by the Main Jet and might fall out when it is removed. If it falls out, replace it in the same orientation before replacing the Main Jet.

8. Replace the Main Jet with the replacement Main Jet needed for your altitude range (part 1a or 2a).
   Note: The Fuel Cup Seal and Bolt Seal may be damaged during removal and should be replaced with the new ones from the kit.
9. Replace the Fuel Cup Seal (4a), fuel cup, Bolt Seal (3a), and bolt. Tighten in place.
   NOTICE: Do not cross thread bolt when tightening.
   Finger tighten first and then use a wrench to make sure the bolt is properly threaded.
10. Replace the solenoid and Solenoid Seal (5a), and tighten in place with screws
11. Wipe up any spilled fuel and allow excess to evaporate before starting engine. To prevent FIRE, do not start the engine while the smell of fuel hangs in the air.

High Altitude Kit parts List - A

Components and Controls

Operation

Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product.

Pre-Start Checks

Inspect Engine and Generator looking for damaged, loose, and missing parts before set up and starting.

If any problems are found, do not use generator until fixed properly.

Checking and Filling Engine Oil

NOTICE: Generator is shipped without engine oil. Engine's crankcase MUST be filled with oil before first use. Your Warranty is VOID if the Engine's crankcase is not properly filled with oil before first use and before each use thereafter. Before each use, check the oil level. Engine will not start with low or no engine oil.

1. Make sure the Engine is stopped and is level.
2. Clean the top of the Oil Fill Cap / Dipstick and the area around it. Remove the Cap / Dipstick, turning it counterclockwise.
3. Check the oil level. The oil level should be up to the edge of the hole as shown.
4. As needed, add the appropriate type of oil until the oil level is at the proper level. SAE 10W-30 oil is recommended for general use.
5. Thread the Oil Fill Cap / Dipstick back in clockwise.

NOTICE: Do not run the engine with too little oil. Engine will shut off if engine oil level is too low.

Checking and Filling Fuel

TO PREVENT SERIOUS INJURY FROM FIRE:

Fill the fuel tank in a well-ventilated area away from ignition sources. If the Engine is hot from use, shut the Engine off and

wait for it to cool before adding fuel. Do not smoke.

1. Clean the Fuel Cap and the area around it.
2. Unscrew and remove the Fuel Cap.
3. Remove the Strainer and remove any dirt and debris. Then replace the Strainer.

Note: Do not use gasoline containing more than 10% ethanol (E10). Do not use E85 ethanol. Add fuel stabilizer to the gasoline or the Warranty is VOID.

Note: Do not use gasoline that has been stored in a metal fuel container or a dirty fuel container. It can cause particles to enter the carburetor, affecting Engine performance and/or causing damage.

4. If needed, fill the Fuel Tank to about 1 inch under the fill neck of the Fuel Tank with 87 octane or higher unleaded gasoline that has been treated with a fuel stabilizer additive. Follow fuel stabilizer manufacturer's recommendations for use.
5. Replace the Fuel Cap.
6. Wipe up any spilled fuel and allow excess to evaporate before starting engine. To prevent FIRE, do not start the engine while the smell of fuel hangs in the air.

Starting the Engine

Note: Moving the Choke too fast could stall the Engine.

Allow the Engine to run at no load for five minutes after each start-up so that the Engine can stabilize.

CARBON MONOXIDE SHUTOFF

TO PREVENT SERIOUS INJURY AND DEATH FROM CARBON MONOXIDE INHALATION:
The Carbon Monoxide sensor is an additional layer of protection only. Do not use the Generator in any area or situation that will allow carbon monoxide to accumulate.

• FLASHING RED LIGHT:
  Dangerous levels of carbon monoxide gas have built up and generator will shut off. Leave immediately until area has aired out. Move Generator to well-ventilated area before operation.

• FLASHING YELLOW LIGHT:
  Carbon monoxide sensor malfunction. Sensor needs service. Do not use the Generator until the sensor is working properly. For technical questions, please call 1-888-866-5797. NOTE: Yellow light flashes once after starting to indicate passing selfcheck and is functioning normally.

Carbon Monoxide sensor must only be serviced by qualified technician to restore it to original settings. Do not modify or tamper with the Carbon Monoxide sensor. Not following these instructions can result in death or serious injury due to Carbon Monoxide sensor malfunction.

Break-in period

1. Breaking-in the Engine will help to ensure proper generator and Engine operation.
2. The break-in period will last about 30 hours of use.
   DO NOT exceed 75% of the Generator's running wattage during this period.

• Change the engine oil after this period.

Under normal operating conditions subsequent maintenance follows the schedule explained in the MAINTENANCE section.

Connecting 120 VAC Loads to the Generator

Calculate power Draw:

Power draw can be calculated by multiplying volts and amps. The resulting number is wattage.

• Never exceed the running wattage for the Generator or any outlet amperage rating.
• Refer to appliance/tool owner's manuals to determine the wattage of electrical load devices.
• Long power cords and extension cords draw additional power. Keep cord length at a minimum.

Wattage Estimates
Refer to your device documentation for start-up and running wattage requirements. Check nameplate wattages on all loads before connecting to Generator.

Plug the power cord of the 120 volt appliance/tool into the 120 VAC Outlet on the Generator. Plug in appliances from largest to smallest load.

Note: Do not allow the Generator to completely run out of fuel with devices attached. A Generator's output may sharply spike as it runs out of fuel, causing damage to attached devices.

Overload Indicator
Note: The OVERLOAD light may turn on for a few seconds as a large device starts up.

This is normal for loads approaching the capacity of this Generator.

Economy (ESC) Switch

1. Turn the Economy (ESC) Switch ON to limit noise and fuel consumption for lighter generator loads.
2. Turn the Economy (ESC) Switch OFF to operate engine at full speed:
   1. when starting
   2. when a heavy load is applied

Stopping the Engine

To stop the Engine in an emergency, turn the Switch OFF.

1. Turn all electrical load devices off and unplug them from the Generator.
2. If the Economy (ESC) Switch is ON, turn it to the OFF position.
3. Close the Fuel Valve.
4. Turn the Switch OFF.

Maintenance

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING:
Turn the Switch of the Generator to its "OFF" position, close the Fuel Valve, wait for the engine to cool, and disconnect the spark plug cap before performing any inspection, maintenance, or cleaning procedures.

TO pREVENT SERIOUS INJURY FROM GENERATOR FAILURE:
Do not use damaged generator. If abnormal noise, vibration, or excess smoking occurs, have the problem corrected before further use.

Follow all service instructions in this manual. The engine may fail critically if not serviced properly.

Many maintenance procedures, including any not detailed in this manual, will need to be performed by a qualified technician for safety. If you have any doubts about your ability to safely service the generator or engine, have a qualified technician service the generator instead.

Cleaning, Maintenance, and Lubrication Schedule

Note: This maintenance schedule is intended solely as a general guide. If performance decreases or if generator operates unusually, check systems immediately. The maintenance needs of each generator will differ depending on factors such as duty cycle, temperature, air quality, fuel quality, and other factors. Note: The following procedures are in addition tothe regular checks and maintenance explained as part of the regular operation of the engine and generator.

Procedure	Before Each Use	Every 3 mo. or 50 hr. of use	Every 6 mo. or 100 hr. of use	Yearly or every 300 hr. of use	Every 2 Years
Brush off outside of engine Check engine oil level Check air filter
Clean/replace air cleaner		*
Change engine oil Check and clean spark arrestor Check and clean spark plug
Check/adjust idle speed Check/adjust valve clearance Clean fuel tank, strainer and carburetor Clean carbon build-up from combustion chamber				**
Replace fuel line if necessary					**

*Service more frequently when used in dusty areas.

**These items should be serviced by a qualified technician.

Checking and Filling Fuel

TO PREVENT SERIOUS INJURY FROM FIRE:
Fill the fuel tank in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before adding fuel. Do not smoke.

1. Clean the Fuel Cap and the area around it.
2. Unscrew and remove the Fuel Cap.
3. Remove the Strainer and remove any dirt and debris. Then replace the Strainer.

Note: Do not use gasoline containing more than 10% ethanol (E10). Do not use E85 ethanol. Add fuel stabilizer to the gasoline or the Warranty is VOID.

Note: Do not use gasoline that has been stored in a metal fuel container or a dirty fuel container. It can cause particles to enter the carburetor, affecting engine performance and/or causing damage.

4. If needed, fill the Fuel Tank to about 1 inch under the fill neck of the Fuel Tank with 87 octane or higher unleaded gasoline that has been treated with a fuel stabilizer additive. Follow fuel stabilizer manufacturer's recommendations for use.
5. Replace the Fuel Cap.
6. Wipe up any spilled fuel and allow excess to evaporate before starting engine. To prevent FIRE, do not start the engine while the smell of fuel hangs in the air.

Engine Oil Change

Oil is very hot during operation and can cause burns. Wait for engine to cool before changing oil.

1. Make sure the Engine is stopped and is level.
2. Lift and tilt the Generator. Remove the Drain Plug on the bottom of the machine, then set the Generator back down on a level surface.
3. Clean the top of the Oil Fill Cap / Dipstick and the area around it. Remove the Cap / Dipstick, turning it counterclockwise.
4. Place an oil drain pan under the Generator and center under the Drain Plug opening. Remove the Oil Drain Bolt, tilt the Generator slightly to facilitate drainage and wait for oil to drain completely. Recycle used oil.
5. Tilt the Generator and replace the Drain Plug, then set the Generator back down on a level surface.
6. Replace the Oil Drain Bolt and add the appropriate type of oil until the oil level is at the proper level. SAE 10W-30 oil is recommended for general use.
   Note: Make sure Generator is level when adding oil to prevent overfilling which could cause engine damage.
7. Check the oil level. The oil level should be up to the edge of the hole as shown.
8. Thread the Oil Fill Cap / Dipstick back in clockwise.

NOTICE: Do not run the engine with too little oil.
Engine will not start with low or no engine oil.

Air Filter Element Maintenance

1. Remove the Air Filter Cover and the air filter elements and check for dirt. Clean as described below.
2. Cleaning:

• For "paper" filter elements: To prevent injury from dust and debris, wear ANSI-approved safety goggles, NIOSH-approved dust mask/respirator, and heavy-duty work gloves. In a well-ventilated area away from bystanders, use pressurized air to blow dust out of the air filter.
• For foam filter elements:
  Wash the element in warm water and mild detergent several times. Rinse. Squeeze out excess water and allow it to dry completely. Soak the filter in lightweight oil briefly, then squeeze out the excess oil.

3. Install the cleaned filter.

4. Secure the Air Filter Cover before use.

Spark Arrestor Maintenance

TO PREVENT SERIOUS INJURY AND FIRE: Operate only with proper spark arrestor installed.

Operation of this generator may create sparks that can start fires around dry vegetation. A spark arrestor may be required. The operator should contact local fire agencies for laws or regulations relating to fire prevention requirements.

1. Allow the Generator to cool completely.
2. Remove the Bolts that hold the Spark Arrestor Bracket in place.
3. Clean the Spark Arrestor using a wire brush (sold separately). Replace arrestor if damaged.
4. 
   TO PREVENT SERIOUS INJURY FROM ACCIDENTAL BRUSH FIRE, secure Spark Arrestor back in place immediately after cleaning and before further operation

Spark plug Maintenance

1. Disconnect spark plug cap from end of plug. Clean out debris from around spark plug.
2. Using a spark plug wrench, remove the spark plug.
3. Inspect the spark plug:
   If the electrode is oily, clean it using a clean, dry rag. If the electrode has deposits on it, polish it using emery paper. If the white insulator is cracked or chipped, the spark plug needs to be replaced.

NOTICE: Use only F6RTC type spark plug or equivalent. Using an incorrect spark plug may damage the engine.

4. When installing a new spark plug, adjust the plug's gap to the specification on the Specifications chart. Do not pry against the electrode, the spark plug can be damaged.
5. Apply anti-seize material to Spark Plug threads. Install the new spark plug or the cleaned spark plug into the engine.

• Gasket-style: Finger-tighten until the gasket contacts the cylinder head, then tighten about 1/2-2/3 turn more.
• Non-gasket-style: Finger-tighten until the plug contacts the cylinder head, then tighten about 1/16 turn more.

NOTICE: Tighten the spark plug properly. If loose, the spark plug will cause the engine to overheat.
If overtightened, the threads in the engine block will be damaged.

6. Apply dielectric spark plug boot protector (not included) to the end of the spark plug and reattach the cap securely.

Storage

When the generator is to remain idle for longer than 20 days, prepare the engine for storage as follows:

1. CLEANING:
   Wait for engine to cool, then clean engine with dry cloth.
   NOTICE: Do not clean using water.
   The water will gradually enter the engine and cause damage.
2. FUEL:
   Gasoline Treatment/Draining the Fuel Tank
   To protect the fuel tank during storage, fill the tank with fresh gasoline that has been treated with a fuel stabilizer additive. Follow fuel stabilizer manufacturer's recommendations for use. Refer to Checking and Filling Fuel Checking and Filling Fuel.

Aged gasoline that has not been treated with stabilizer ahead of time must be safely drained away and not run through the engine.

TO PREVENT SERIOUS INJURY FROM FIRE:
Fill tank in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before adding fuel. Do not smoke.

Draining the Carburetor
After closing the Fuel Valve, place an appropriate container under the Carburetor and carefully remove the Drain Bolt from the bottom of the Carburetor Bowl, allowing the fuel to drain completely. Replace the Drain Bolt after draining.

To prevent serious injury and fire, close the Fuel Valve before draining the Carburetor.

3. LUBRICATION:
   1. Change engine oil.
   2. Clean out area around spark plug. Remove spark plug and pour one tablespoon of engine oil into cylinder through spark plug hole.
   3. Replace spark plug, but leave spark plug cap disconnected.
   4. Pull Starter Handle to distribute oil in cylinder. Stop after one or two revolutions when you feel the piston start the compression stroke (when you start to feel resistance).
4. STORAGE AREA:
   Cover and store in a dry, level, well-ventilated area out of reach of children. Storage area should also be away from ignition sources, such as water heaters, clothes dryers, and furnaces. Avoid direct exposure to rain and sunlight.

NOTICE: During extended storage periods the Engine must be started every 3 months and allowed to run for 15 – 20 minutes or the Warranty is VOID.

5. AFTER STORAGE:
   Before starting the engine after storage, keep in mind that untreated gasoline will deteriorate quickly. Drain the fuel tank and change to fresh fuel if untreated gasoline has been sitting for a month, if treated gasoline has been sitting beyond the fuel stabilizer's recommended time period, or if the engine does not start.

Follow all safety precautions whenever diagnosing or servicing the generator or engine.

The emissions control system for this Engine is warranted for standards set by the U.S. Environmental Protection Agency. For warranty information, refer to the last pages of this manual.