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  1. J

    M4030 Inj Pump proublems

    I’ve got a m4030 that hunts at idel. Had the pump redone because the rack was stuck from sitting. It would hunt at all rpm’s until I had it repaired but now just does it around 1000rpm and below. I has all 3 new springs but someone else installed those. I’m wondering if the may have got one of...