1983 Mitsu L200 4g63 2,0 4wd

Hi! I found this page after hours of searching.
I have the european version L200, and have recently had som engine trouble. First my gas pump filled the engine with about 6 liters of petrol without me notecing:shrug:
Then my head gasket cracked a week later. I changed the head gasket only to fire up the engine and get thick, blue exhaust. Next step was internal engine cleaning with amacing results:) but when trying to "tune" the engine I did it.. I confused the idle screw for the mixing screw and didn't realize it before it was way out of adjustment.
Does anyone have any tips / instructions for re-adjusting the carb?

Any help would be greatly appreciated
Bregs
Lars, Norway