New 4 prong ngk's and cleaned all 4 jets (technically more I know) in my mikuni, now she won't hold an idle without me giving gas. Starts easy with gas on my part, won't idle... Didn't mess with screw adjustment, checked all positions before removal, just cleaned and put back on. Think it's just getting too much from the oem fuel pump and I need a fpr or mess with the air/fuel ratio screw wherever it is on it?

 

Any chance the jets didn't go back into the right spot when you did the clean? I've made that mistake before and the results weren't pretty.

The other obvious candidate is a vacuum leak, but I assume there aren't too many vacuum hoses on a Mikuni setup.

It's unlikely that the fuel pump is a problem now, since the problem started after you did the carb clean, so focus on that first.