Well, if the engine doesn't idle unless the choke is on, then yes, there may be a pretty large air leak. If the engine simply performs better with the choke slightly "on", then it is most likely a carb tuning issue.QUOTE]
It idles well with the choke off and runs okay with the choke on. Now, with my limited knowledge of these carbs, what would be adjustable? In the areas that we're trying to get it to run, the only thing that I could think of that would be "tunable" at all would be the needle valve setting on the four slots, correct? I'm open to learn more on this one!