Suzuki KingQuad 400ASi LT-A400F 2023 Owner's Manual

The recommended oil type for the Suzuki KingQuad 400ASi LT-A400F 2023 ATV is SAE 10W-40, API service classification SF or SG. Always ensure to check the owner's manual for the most accurate information.
It is recommended to change the oil every 100 hours of operation or at least once a year. More frequent changes may be necessary if you operate in extreme conditions.
If your ATV won't start, check the battery to ensure it is charged and the terminals are clean. Verify that the fuel is fresh and the fuel valve is in the correct position. Additionally, inspect the spark plug for wear and proper connection.
The recommended tire pressure for the Suzuki KingQuad 400ASi LT-A400F 2023 ATV is 4.0 psi for the front tires and 4.0 psi for the rear tires. Always check the pressure when the tires are cold.
Regularly inspect the brake pads for wear and replace them if necessary. Ensure the brake fluid is at the correct level and free from contamination. Check for any leaks in the brake system and ensure all connections are tight.
If the engine overheats, stop the ATV immediately and let it cool down. Check the coolant level and ensure there are no leaks. Inspect the radiator for blockages and clean any debris. Restart the engine only when it has cooled sufficiently.
To adjust the chain tension, first loosen the axle nut. Then, turn the adjuster bolts on both sides of the swingarm evenly to achieve the desired tension. Ensure the chain has a slight slack before retightening the axle nut.
Regular maintenance includes checking and changing the oil, inspecting and cleaning the air filter, checking tire pressure, inspecting brakes, and ensuring all lights and electrical components are functioning properly.
For winter storage, clean the ATV thoroughly and apply a protective wax. Drain the fuel or add a fuel stabilizer. Disconnect the battery and store it in a cool, dry place. Cover the ATV with a breathable cover to protect it from dust and moisture.
If experiencing poor fuel efficiency, check the air filter for dirt and replace it if necessary. Ensure the tire pressure is correct and inspect the fuel system for leaks. Also, consider having the carburetor checked for proper adjustment.