There is no choke to adjust.
Clean, adjust, and lucbricate
Unscrew the current choke and screw in the required choke. Making sure to clean the threads before hand.
Loosen the cable at the carb and hold the choke valve wide open. Then tighten the cable. Check to make sure it closes all the way when you pull the choke lever.
That truck has throttle body fuel injection. There is no choke.
(1) Loosen the choke cable at the cable control bracket but do not remove it. (2) Pull cable knob or lever all the way to closed position. (3) Manually close the choke baffle all the way. (4) Tighten the choke cable at the cable control bracket. (5) Ensure choke opens and closes properly by pushing and/or pulling the cable knob or lever.
There is no choke to adjust on that vehicle, it is fuel injected. If you are having difficulty starting the engine when cold try replacing the coolant sensor.
If it runs with the choke on, Then it will not do any good to adjust them. It is running lean/ not getting fuel. The carburetors have dirt in the fuel jets and that is why it won't run when choke is off. When choke is on that richins the fuel up and it try's to run. Need to clean the carbs out.
It looks like the choke on a 1994 Mitsubishi pajero is set by the manufacture standards and you unfortunately can not change the choke with out it being a manufacture
There is no choke on an injection system. The cold start enrichment system performs this function.
When engine is cold loosen screws on choke cover, or drill out rivets. Hold throttle part way open, then turn the cover until the choke opens, then slowly turn the choke cover the opposite direction until the choke closes all the way. Mark the cover and tighten or install new rivets and you are done. Good luck Jerry