MTD: For a Growing World.

Diagnose & Troubleshoot Lawn Tractors

Select one of the symptoms below to find possible causes and common solutions

Common Symptoms:

Engine Smokes

Possible Causes Corrective Actions

1Safety switch button not depressed.

Be sure deck is disengaged all the way, parking brake is engaged and operator is sitting on the seat.

2Battery is installed incorrectly.

The battery must be installed with negative terminal attached to black ground wire. Negative is identified by "NEG" "N" or "-" The positive terminal "POS" "P" or "+" must be attached to the big red wire which goes to the solenoid. Charge battery fully before installing.

Safety Tip: Take care not to touch both positive and negative battery terminals as electric shock can occur.

3Battery is weak or dead.

  • Check fluid level in battery.
  • If fluid is low, fill to just below split rings with water.
  • Charge battery fully.

4Battery is weak or dead.

  • Replace with an automotive type fuse.
  • Check for loose connections in fuse box, bare wires, and pinched wires.
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