Sorry for my limited knowledge bro! where is this acceleration pump jet located?
As I changed the carburetor during engine overhaul, the current carburetor is equipped with a solenoid type thing (Can't remember its exact name now). I think it blocks the fuel supply when the ignition is turned of and when the ignition is switched to On position, you can hear a click, the pin type thing is pulled back. Can there be a problem with this thing.