ok inthat case you need to move the idle needle in slightly, the way i do it is to adjust the trim on my radio to a suitable idle speed, don't go crazy a slow idle makes braking more effective, something needed off road because of low grip. I then (with the radio still on, so it puts up resistance) screw the idle screw in until it either lock or the idle speeds up and then back it out by 1/8th of a turn and 'voila', perfect idle
[8D]