1964 Ford 2000 tractor carb & "spark" question

Folks I've had a problem with my tractor running awhile the choking out as if it was running out of gas, let it sit awhile and it crank back up but thenshut off again. Did some checking and had a number of comments on what to check (fuel lines/filters, gas cap, fuel flow into carb, spark test, etc.). I changed out the fuel line from the tank to carb along with new vented gas cap. So far runs fine but have only moved it from garage around the yard and back so no real work or time on it but will see tomorrow when I go to pull some privet with it. However like all things one question/issue leads to another and I got two for advise please:
1) I believe I got gas leaking from around the screws that hold top/bottom halves of carb together as it looks "wet" around the screws even a few minutes after I've wiped it down? Is this normal/bad? do I need to do a carb repair kit on it? replace it?

2) Did half the "spark test" on the coil/distributor and got a yellow/orange spark (not a blue spark) from coil to distributor wire? what does this mean and how do I fix it?

Any and all help would be appreciated. [/img]
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Testing spark and having fuel leak are not good since that can mean a fire. Try tightening up the carb screws. If that does not work you may need to buy a carb kit so you have a new gasket etc. As for spark it needs to be a Blue white and jump a 1/4 inch gap or more. As for why the spark is not good that can be a few things. Point gap wrong. Should be 0.025 give or take 0.001. Poor connections some place will also cause weak spark. Or other such problems
 

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