Home Forum Ask A Member Neptune AA1 carburetor adjustment

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  • #276431
    dlswart57
    Participant

      My Neptune aa1 will run for a minute or two then die. I have played with adjustments, now it’s worse. Any help is appreciated.

      #276432
      jeff-register
      Participant

        US Member - 2 Years

        I have never worked on this carb but start with the basics. Check the tank filter if present, dirty carb passageways, remember very small motors have tiny passages Also check float level & drop, clean the jets, next look at the adjustable jets for damage.  If you run lean remember the oil is mixed with the fuel so no lubercation takes place. I’ve used air conditioning condenser coil cleaner to clean factory clogged filters as it’s very easy on metal designed for aluminum coils. Can be bought at air conditioning supply houses in quart sizes. Soak the filter overnight, rinse  & repeat. I used a “shot glass” to submerge the filter saving much fluid cleaner for next time as sintered metal filters are fragile.  It appears it’s running out of fuel is all. It’s a “chain” of events to deliver fuel to the motor & everything must work together.

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