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Erratic idling

I have a Clark lift truck CMP 25 LP that is giving me trouble it turns on but hads a erratic idle the RPMs go up and down i cleaned out the LP regulator cleaned out the carburetor checked all vacuum hoses seem to be OK is this carburetor electronic It has a Harness going to the bottom of the carburetor base Will I have to get a laptop connected to the truck I was thinking maybe is the LP pressure sensor any help To get me going to the right direction to fix this unit
  • Posted 6 Jun 2022 08:00
  • Modified 6 Jun 2022 08:02 by poster
  • By Tony_Aguilar
  • joined 14 Apr'22 - 12 messages
  • Texas, United States
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Very nice !
  • Posted 7 Jun 2022 05:11
  • By LaGrange
  • joined 15 Sep'13 - 301 messages
  • Missouri, United States
Strong in mind, Strong in Health.
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Thank you that's what it was I replace the filter I need is up and running like a champ thanks again
  • Posted 7 Jun 2022 00:05
  • By Tony_Aguilar
  • joined 14 Apr'22 - 12 messages
  • Texas, United States
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The symptom that you're describing is a clogged fuel filter.

If it has an IMPCO Lock off, you'll need to disassemble it and change the filter if it is dirty or deteriorated.

If the fuel system uses a fuel filter, it will most likely be attached to the propane hose near the radiator.

It's easy to find.
  • Posted 6 Jun 2022 22:00
  • By LaGrange
  • joined 15 Sep'13 - 301 messages
  • Missouri, United States
Strong in mind, Strong in Health.
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