I agree with Phil...the gasket set probably was interchangeable, but it's improbable that a tractor would need an "in-flight" adjustable mixture control. For those interested in the how the MA3 aircraft carb mixture control works, here's the inside of one, at http://www.n56ml.com/swift/mixture_ma3.jpg. The mixture is controlled by rotating a flexible shaft (rusty thing on the left of the bowl) which rotates a slotted cylinder inside another slotted cylinder. The more that slots align, the larger the slot gets, and the more fuel flows. Once assembled, there's a lever attached to the flexible shaft, which is connected to the aircraft mixture control knob's cable. Obviously this carb was ready for a rebuild...
Mark Langford ML at N56ML.com website at http://www.N56ML.com --------------------------------------------------------
