TPS adjusts mid range timing by a few deg.,no control on WOT but it does need to be properly set.Bob Brown said:Does anyone know how to adjust the TPS on a 600 twin? Since this is a basically a variable resistor there must be some adjustment specs to change/advance timing at some point in RPM's. I would assume that there should be a resistance spec for 1/2 throttle and full throttle. Anyone have a manual that lists these adjustments?