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More info... Took the carb off last night (getting lots of experience with that) just to make sure I didn't miss anything. The main jet is still stock; I changed the idle jet back to the original. Only difference is the main gasket & the needle valve...which is about 1/8 inch shorter than the original. So...this will change the float height and *apparently* affect the carb operation. So, I bent the float to change the location that the float stops fuel flow and reinstalled (did I mention I'm getting good at that?) Tractor still behaves the same but changing the idle jet setting changed the idle of the engine, so I think the float height change had some effect. Still not there but getting closer - repeat the whole process tonight. Incidentally I noticed that the governor is doing its job. At one or two notches on the throttle opening the engine is running wide open. Pulling the throttle wide open does not change the carb setting...the governor is preventing any more fuel being introduced to the engine. No Ian I did not replace the throttle shaft. Those setting have remained constant. Currently only the gasket & needle valve have been replaced. I changed the needle valve because I found on my motorcycle that they get old & don't seal...all that fuel running by them. I *thought* this is why the carb leaked after I shut things off...still leaks. There is an in-line fuel shutoff, I just use that.
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