Mercury – “Hot-Foot” Foot Throttle | Mechanical Throttle Control | 8M0168992Mercury Hot Foot Foot Throttle Mechanical Throttle Control 8M0168992 The Mercury Hot Foot foot throttle is a mechanical throttle control designed for boaters who want hands free throttle modulation and a more connected driving feel. By moving throttle input to a foot pedal, it frees up your hands for steering and boat handlingespecially useful when running in chop, making quick course corrections, or operating performance oriented rigs with mechanical