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Trouble Shooting for Small Engines.

Troubleshooting Guide


Remember the big three's that a engine must have to start:

  • Must be getting fuel (dirty or clogged fuel filters).
  • Must be getting air into the carb (air filters).
  • Must be getting spark (check for good spark).
Engine Won't Start:

  • Check fuel for level and cleanness. Has it been left out side? Possibly water in the gas tank.
  • Is the engine primed and choked properly?
  • Are all safety switches locked in place (brake pedal depressed)?
Engine Will Not Crank:

  • Are safety switches locked in place (brake pedal depressed)?
  • Safety control arm depressed?
  • If installed with oil level shutoff, Is oil level at proper level?
  • Is battery charged if available on your model?
  • Obstructions under deck that blocks blade from turning (never put your hands near blades)?
  • Check for spark.
  • Do you have fuel shut off on?
Engine Smokes:

  • Check to see if oil level to high?
  • Possible signs of worn internal parts (contact an authorized service dealer).
Mower Vibrates Excessively:

  • Check for bent or damaged blades (never put hands near blades).
  • Broken engine mounts or welds.
  • Broken or loose blade hubs (never put hands near blades).
  • Bent crankshaft (this can be a possible cause specially if it happens after you have hit something).

Remember proper regular maintenance is the key to a good performing engine