1B

UnclassifiedCooling

What This Code Means

Failure to start; Engine fails to start after 4 crank attempts

Possible Causes

  • •Faulty spark plug
  • •Faulty ignition system
  • •Faulty carburetor
  • •Faulty fuel solenoid

Suggested Actions

  1. 1Pause at RUN and attempt to crank engine, limiting cranking time to about 5 seconds
  2. 2After 4 failed crank attempts, turn key to OFF and make one final attempt to start
  3. 3Check spark plug, ignition, carburetor, and fuel solenoid

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for 1B on your specific Rehlko unit — cited to the OEM manual, not a forum guess.

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