How to Troubleshoot a John Deere LT 133 Lawn Mower

The John Deere 133 lawn tractor makes it easy to mow a large yard compared to using a push mower. The Model 133 features a 13-horsepower Kohler engine that provides power to the 38-inch mowing deck and the rear wheels. Although the mower is built to last for many years with normal use, occasional problems may arise. If the lawn mower does not start or does not run properly, there are troubleshooting steps that John Deere recommends for this model.

Spark plug
Socket wrench
Gasoline

Instructions

- 1
  Determine if the gas tank is empty. If necessary, add gas until the level reaches the full line.
- 2
  Press the brake pedal as far down as it will go. The pedal must be fully depressed to start the mower.
- 3
  Disengage the mower blades. Move the blade lever to the "Disengaged" position. The mower will not start if the mower blades are engaged.
- 4
  Locate the spark plug and examine the spark plug wire. Push firmly on the spark plug wire to make sure it is seated fully on the spark plug.
- 5
  Replace the spark plug, if necessary. Pull the spark plug wire off the spark plug. Remove the spark plug, using a socket wrench. Install the new spark plug, using a socket wrench. Push the spark plug wire firmly onto the spark plug with your fingers.

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