My boat never came with an hour guage and i just rebuilt everything so i bought a used digital one. it says quicksilver on it but i cant find the manufactorer. It has 2 wires (1) for ground and (1) to wrap around the spark plug. I would really like to reset it so i dont have to remember the starting numbers forever. If anybody know how i can reset it or ever the manu. so i can contact them. is has no buttons or anything. it is completly sealed andout 1" by 1.5". thanks