Hi Jerry, The Speedometer works like all others except no external pitot tube pick up. It does come from a small hole in the leading edge of the lower unit. A thin plastic tube comes up from that and dies out under the power head. It'll be painted the same grey color as the engine, with a hose barb plug in it. If it's never been hooked up, the hose barb will need to be clipped at the end, to allow the water pressure through to the speedometer hose you hook up to it. The hose should be coming out with your wire harness and controls, through the lower cowling. Let me know if you find it.