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#17664
Don
Participant

    US Member

    Not sure I understand what you are describing with the starter interlock, can you post some pictures?
    Again, you might want to go .001-.002" richer in the high speed jet just to be safe. The J4Cs will definitely run a little cooler.
    And yes, I’m thinking you might be chasing a bit of a ghost, but it’s good you found the hot/lean WOT condition if the engine will be used continuously at WOT.