hi i need help on my car i have a suzuki multicab i think its 6 valve cuz it have 3 cylinders. right now i’m having a problem i bought this car surplus so i just fixed it myself. I manage to make it run but the probelem is while its on idle the engine keeps on raising its rom and wont slow down. I already change the carburetor but still them same. I even change the fuel filter and hoses. Is there any adjustments i can do in the carburetor? or should i overhaul and check my fuel pump? I have a mechanical pump right now, I’m guessing that the pump might be the problem? not enough or stable pressure maybe? Also I’m planning to get electric fuel pump please do guide me in here. I dont want to get another mechanic since I already have 4 mechanics checked it so I’m doing it myself. I’m a marine engineer so just little experience on car engines.