Honda GX120K1 Engine

⚠ Using gasoline or flammable solvent to clean the filter element can cause a fire or explosion. Use only soapy water or nonflammable solvent.

⚠ Never run the generator without the air cleaner. Rapid engine wear will result.

1. Remove the wing nut and air cleaner cover. Remove the elements and separate them.
2. Carefully check both elements for holes or tears and replace if damaged.
3. Foam element: wash in household detergent and warm water, then rinse thoroughly. Allow to dry.
4. Soak the foam element in clean engine oil and squeeze out the excess oil.
5. Paper element: tap lightly several times on a hard surface to remove excess dirt.
6. Or blow compressed air through the filter from the inside out. Never brush the dirt off.
7. Replace the paper element if it is excessively dirty.

⚠ Used motor oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods.

Tools: 10 x 12 mm wrench

1. Drain the oil while the engine is warm to assure rapid and complete draining.
2. Remove the drain plug and sealing washer, oil filler cap, and drain the oil.
3. Reinstall the drain plug and sealing washer. Tighten the plug securely.
4. Refill with recommended oil and check the oil level.

1. Turn the fuel valve to the OFF position. Remove the sediment cup and O-ring.
2. Clean the sediment cup and O-ring in nonflammable or high flash point solvent.
3. Reinstall the O-ring and sediment cup.
4. Turn the fuel valve ON and check for leaks.

⚠ If the generator has been running, the muffler will be very hot. Allow it to cool before proceeding.

Tools: Brush

1. Loosen two 8 mm nuts and 6 mm bolt to remove the muffler assembly.
2. Loosen four 5 mm screws and remove the muffler protector from the muffler.
3. Loosen 4 mm screw and remove the spark arrester from the muffler.
4. Use a brush to remove carbon deposits from the spark arrester screen. Inspect for breaks or tears.
5. Install the spark arrester and muffler in reverse order of disassembly.

⚠ If the engine has been running, the muffler will be very hot. Be careful not to touch the muffler.

⚠ An improperly tightened spark plug can become very hot and could damage the engine.

Tools: Spark plug wrench, Feeler gauge, Wire brush

1. Remove the spark plug cap.
2. Clean any dirt from around the spark plug base.
3. Use the wrench supplied in the tool kit to remove the spark plug.
4. Visually inspect the spark plug. Discard it if the insulator is cracked or chipped.
5. Clean the spark plug with a wire brush if it is to be reused.
6. Measure the plug gap with a feeler gauge; adjust by carefully bending the side electrode.
7. Thread the spark plug in by hand to prevent cross-threading.
8. If installing new, tighten 1/2 turn after seating; if reusing, tighten 1/8 - 1/4 turn after seating.

⚠ Gasoline is extremely flammable and is explosive under certain conditions. Perform this task in a well ventilated area with the engine stopped.

1. Drain the carburetor by loosening the drain screw. Drain the gasoline into a suitable container.
2. Change the engine oil.
3. Remove the spark plug and pour about a tablespoon of clean engine oil into the cylinder.
4. Crank the engine several revolutions to distribute the oil, then reinstall the spark plug.
5. Slowly pull the starter grip until resistance is felt, leaving the engine on its compression stroke.

⚠ Most motorized appliances require more than their rated wattage for startup.

⚠ Do not exceed the current limit specified for any one receptacle.

1. Start the engine.
2. Switch ON the AC circuit breaker.
3. Plug in the appliance.

⚠ The battery gives off explosive gases; keep sparks, flames and cigarettes away. Provide adequate ventilation.

⚠ Do not start the vehicle while the battery charging cables are connected and the generator is running.

1. Before connecting charging cables to a battery installed in a vehicle, disconnect the vehicle's grounded battery cable.
2. Connect the positive (+) battery cable to the battery positive (+) terminal.
3. Connect the other end of the positive (+) cable to the generator positive (+) terminal.
4. Connect the negative (-) battery cable to the battery negative (-) terminal.
5. Connect the other end of the negative (-) cable to the generator negative (-) terminal.
6. Start the generator.

1. Stop the engine.
2. Disconnect the negative (-) battery cable from the generator negative (-) terminal.
3. Disconnect the other end of the negative (-) cable from the battery negative (-) terminal.
4. Disconnect the positive (+) battery cable from the generator positive (+) terminal.
5. Disconnect the other end of the positive (+) cable from the battery positive (+) terminal.
6. Reconnect the vehicle grounded battery cable.

⚠ Do not allow the starter grip to snap back against the engine. Return it gently to prevent damage to the starter or housing.

1. Make sure that the AC circuit breaker is in the OFF position.
2. Turn the fuel valve to the ON position.
3. Turn the choke lever to the CLOSE position.
4. Turn the engine switch to the ON position.
5. Pull the starter grip lightly until resistance is felt, then pull briskly.
6. As the engine warms up, slowly turn the choke lever to the OPEN position.

⚠ In an emergency, turn the engine switch to the OFF position.

1. Turn the AC circuit breaker to the OFF position. Disconnect DC battery charging cables.
2. Turn the engine switch to the OFF position.
3. Turn the fuel valve to the OFF position.