Simplicity 1691386 SunStar Parts Manual
![Simplicity 1691386 SunStar Tractor manual cover](/images/SQPUsBxKBhhbKEaMbGvfONEC/thumbs/thumb175x175.webp)
Ensure the tractor is in neutral, insert the key into the ignition, and turn it to the start position while pressing the brake pedal. Release the key once the engine starts.
It is recommended to use SAE 30 engine oil for temperatures above 32°F, and SAE 5W-30 or 10W-30 for colder environments.
Check the battery connections for corrosion, ensure the fuel is not stale, verify the spark plug functionality, and inspect the ignition switch and safety interlock system.
Regularly check the transmission fluid level and condition, replace the fluid as specified in the owner’s manual, and inspect for any leaks or unusual noises.
Sharpen the mower blades after every 20-25 hours of use or more frequently if cutting in rough or sandy conditions.
Check the coolant level and radiator for blockages, ensure the cooling fan is operational, and inspect the engine for any leaks or damage.
Locate the air filter housing, remove the cover, take out the old air filter, and replace it with a new one. Ensure the filter is seated properly before replacing the cover.
Inspect the mower blades for balance and damage, check tire pressure, and ensure the engine mounts and deck are securely fastened.
Clean the tractor thoroughly, change the oil, stabilize the fuel, disconnect the battery, and store it in a dry, covered area.
Remove the spark plug wire, use a spark plug socket to unscrew the old plug, check the gap on the new plug, install it, and reattach the spark plug wire.