Identical pilot jets with two different size.

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  • jfman
    • Jan 2026

    #1

    Identical pilot jets with two different size.

    I pulled both pilots from my 1983 GS400's carbs to clean them and althou they are the same (42.5) it is clear to me that they arent the same size.

    I can see it visualy that the size of the hole is different. I checked by blowing thru them and same thing, one seems to flow much better than the other.

    I also checked with a slim pin and I can slide the tip in a lot more in one for the jets versus the other.


    Kind of odd given that the cabr seemed to never have been worked on.

    As if there is one of them that is out of spec from the factory.
  • 7981GS

    #2
    Get two new ones from Z1 Enterprises and be sure.

    Eric

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    • Guest

      #3
      It's easy to overclean them and change the size with a wire !

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