I have read so much about this carburetor I believe it is the Mikuni VM38.
I've tried touching the big screw (Labeled 32 on page 2 in this link) http://www.mikuni.com/pdf/vmmanual.pdf
and after looking at this I now know it's just the screw that adjusts the idle. I know now that 29 the air screw is the one I really need to mess with. That screw is currently all the way in which I knew wasn't right but this thing ran perfectly last year.
I believe that the needle isn't seating properly or not stopping fuel flow into bowl because it is running so rich it's just spitting gas out of the carberator. I can barely get it to rev up because it is so rich and once I get it up there it's still too rich to burn all the gas. The plugs are very wet and black when I take them out.
I've cleaned carburetor very well the only part I didn't get to clean was the needle and seat. Due to the fact the pin that holds the arm that moves as floats go up and down looks tough to get out and I didn't want to use much force. Also if you look on page 12 http://www.mikuni.com/pdf/vmmanual.pdf
I am so confused on how to set this. I'm thinking my bowl is filling up and just leaking up and into the carb loading it up and making it run extremely rich.
My floats move well and I tested them with water once to see if they floated and weren't gas soaked.
My plans are to get that needle out clean in there very well and I would love to set the float to the right position if someone could explain what it says on page 12 to me better than they do that would be great.
Also what can I expect the air screw labeled #29 to be good at? What's the best procedure to setting this? It really doesn't idle on it's own at the moment you need to always be feathering and working the throttle to keep it going.
Any input or ideas would be greatly appreciated. Thank you all!