How to Troubleshoot the Troy Bilt Riding Lawn Mower Model 13AN779G766183630

Check your Troy Bilt Riding lawn mower's gas tank and ensure you have fuel. Refill as necessary.

Lift the front engine hood of the Troy Bilt Riding lawn mower and find the black plug wire that connects to the spark plug at the front of the engine. This wire may be disconnected from the plug, so reinsert it as necessary.

Replace the spark plug entirely if problems persist. Disconnect the spark plug wire from the spark plug and remove the plug. Insert the plug wire into the new spark plug and test your Troy Bilt Riding lawn mower.

Follow the plug wire to the rear of the engine where it sits beside the magnetic coil. The flywheel is the part just behind the magnetic coil, and the tiny space between the two devices is the air gap. The precise width of this gap is important to the functionality of your Troy Bilt Riding lawn mower and to ensuring it cranks and starts properly. Measure the gap and ensure it is between 0.010 and 0.015 of an inch in width. This is roughly the thickness of a playing card.

Adjust the magnetic coil if the air gap is too small or too large. Utilize a wrench to loosen up the coil and apply slight pressure to adjust its relation to the flywheel and alter the air gap. Remeasure the gap to ensure it fits within the specifications.

Close the Troy Bilt Riding lawn mower's front hood.