I need the 2 wing nuts that attach the carb trumpet baseplate to the delta airbox on my Series 1.5 OTS, so I ordered p/n C12734 from one of the usuals. Not cheap considering we’re talking about wing nuts, but I prefer the look of the larger English style vs the smallish ones I could probably find at a local h/w store.
They arrived yesterday, and they don’t fit. Can anyone tell me if I have the wrong p/n for my application, or if it’s a known issue that the ones available today are known to not fit?
The threaded stud on the delta airbox is 5/16-24. I verified that with a nut from the carb-to-intake manifold attachment, which fits the airbox stud and is of that measure. The wing nut is apparently a metric thread, and it fits nicely on a M8x1.25 test stud -