Honda GCV170 2021 Owner's Manual
![Honda GCV170 2021 Engine manual cover](/images/lhVXaRWTrbjeKAGEoByzcKsv/thumbs/thumb175x175.webp)
Use SAE 10W-30 oil for general use in the Honda GCV170 2021 engine. Always check the oil level before use and ensure it meets API service categories SJ or later.
Clean the air filter every 25 hours of operation or more frequently in dusty conditions. Replace the air filter every 100 hours or annually, whichever comes first.
The recommended spark plug for the Honda GCV170 2021 engine is NGK BPR6ES. Ensure it is gapped to 0.028-0.031 inches (0.7-0.8 mm) before installation.
Ensure the fuel valve is open, and there is fresh fuel in the tank. Check the spark plug for fouling and the air filter for cleanliness. If problems persist, consult the user manual for further troubleshooting steps.
Regularly check and change the oil, clean or replace the air filter, inspect and replace the spark plug as needed, and ensure all nuts and bolts are tight. Follow the maintenance schedule in the owner's manual.
Use fresh, clean fuel with a minimum octane rating of 87. Add a fuel stabilizer if storing the engine for more than 30 days. Drain the fuel system before long-term storage to prevent gumming and varnish.
Stop the engine immediately and allow it to cool. Check for obstructions in the cooling air flow and clean any debris from the cooling fins. Ensure the oil level is correct. If the problem persists, consult a professional.
To change the oil, warm up the engine, then stop it and remove the oil filler cap. Drain the oil by tilting the engine towards the drain side. Refill with new oil up to the upper level on the dipstick, and reattach the cap.
The spark plug should be torqued to 13.3 ft-lbs (18 Nm) to ensure a proper seal and prevent damage. Always use a torque wrench to achieve accurate results.
To winterize, drain the fuel tank and carburetor, change the oil, and remove the spark plug to add a few drops of oil into the cylinder. Pull the recoil starter gently to distribute the oil, then reinstall the spark plug. Clean the engine and store it in a dry place.