Well i am from the Philippines and recently I bought a used Suzuki carry it has and f10a engine in it. I don't know much about carbs, but i found that my carb has a electronic feedback. It has a oxygen sensor and a control unit connected to some sort of solenoid that seems to give air depending on o2 readings. My guess is it checks the exhaust output and lets air in the carb to control stoic. I suspect that the vacuum lines are not where they are suppose to be.
i managed to take photos of a local parts supplier parts manual and found that the part is named AIR BLEED CONTROL VALVE, unfortunately i can't make of where the vacuum hose go as my unit does not have an egr. and the carb has lots of lines that is not clearly described in the parts diagram. i have googled for hours and came out with nothing. from the parts catalog i found out that the body code is SK410. so maybe if anyone has a service manual maybe can check this out for me, regarding how this thing functions.
this is the control unit
