i have an 07 vstar 650, when it warms up and i go full throttle it bogs down, like it is starving for gas. i replaced a coil, switched fuel pump from another bike, adjusted the tps, checked the pickup coil, checked the ignitor unit, changed the gas, have double checked the valves, cleaned the carbs. does anyone know what advances the timing. does anyone have any ideas or had this problem. any help would be appreciated.