I moved mine a while back when I was having fuel starvation issues. Cleaned out the tank which was the problem but now I have a flooding problem and I need to put it back. I can't remember how much I moved it.
Make sure someone did not adapt a Grose Jet to it. I had a Kingston 4 ball that someone "restored" that had a Grose Jet that would either stick shut or open. Sure sounds like what you have.
I agree with Royce, I had a 4 ball with a gross jet, which quickly gummed up and refused to seal after sitting for a short length of time. In a perfect sterile environment, with no gas gum issues, I am sure it would work great. I quickly grew tired of pulling the carb to re clean the gross jet every other occasion.
It's got a grose jet and it will stick if I don't start it every day or two but it was ok most of the time until I changed the float setting. It shuts off, all the gas doesn't drain out, but the level is too high. What all is involved in swapping it back? I know the needle/ seat is different than other carbs.
I have a 5 ball with a Grose jet and the float level is set with a set screw in the float arm that bears on the ball of the Grose jet.
You cant really bring yours back to stock because installation of a Grose jet requires you drill out the seat to install the jet.
I've never had a problem with sticking with my 5 ball. I do have an inline gas filter that may be the reason.
I run a 4 ball on my '14 that has been modified with a Grose Jet. It ran great for awhile then started giving me problems like you describe. I replaced the GJ with a new one and from then on I used only ethanol-free gas. Not a hint of trouble since, including sitting all winter full of (ethanol free) gas. I just brought the car back into my shop after it sat untouched for a month in my trailer. Started on the first pull and ran silky smooth on its last trip before putting it away for the winter.
Summary: replace the GJ and use only ethanol-free from here on out. If your local purveyor of petroleum doesn't have it, marinas are good places to check.
I set the float a little lower. Solved my flooding problem. It never leaked gas out but it had too much in the bowl and flooded easy. I guess it was working like those old carbs with no choke that you depress the float. Now I choke it twice then it starts like normal, before no choke and if it didn't start it flooded. Don't know why I waited so long it took like 15 minutes to fix. I set the float lower because I broke it when I had the carb apart to clean it so I stapled it together and coated it with pvc pipe glue, thought it might be heavier. Then it was starving for gas, which was a dirty tank problem also, so I set it higher, too high, and it flooded. It's back to normal now. I don't know how it ran before I cleaned it, it was kind of a mud pie inside where the 4 balls sit. No air filter, dirt daubers, I don't know.
Russ Potter rebuilt a 4 ball for me a few years ago. Among other things, ethanol ate up the cork float. When I got it back, all I had to do is ajust the mixture a quarter of one turn. Russ is a pro with carbs.
He rebuilt mine too, a long time ago. Back then there was no ethanol gas. I remember now, that's how I broke the float. The shellac on the float came apart when I first put ethanol in it in 07 or about. I broke it trying to set it higher after re-coating the float. Then I cleaned it all, and the tank a while back and set the float even higher. Now I got it back right. Runs great other than that float problem.