Vire Tillotson Carb Tuning - dynamic (Engine runnning)

Tuning Vire Tillotson carburettor (all 7hp & late-6hp models) how to tune the 3 setting screws; Slow/Idle mixture, Fast/WOT mixture('T'-bar), tickover speed screw you will have to fine-tune the WOT mix with propellor pushing the boat of course N.B. WOT = Wide Open Throttle