From Carby point of view, there can be two things affecting,
bcoz there would be some alternate function made in MPFI.
1 - There is one Screw in throttle that adjusts the speed (accelerator related), that might need to set.
2 - There is one throttle screw that is used to fix the Stand-By fuel. This one is long one. In Khyber, I need to get closer than brake drum/viper connection to see it rightly.