Re: Thermostadt location
On your Big Twin, it's on the top of the engine, under a cover with three screws. It's the only thing up there it can be. <br /><br />Water on that engine goes out mainly in the exhaust, underwater. About 6" down from the powerhead, on the back of the midsection, is the outlet for the idle relief water. You'll see small amounts of water, with exhaust there...more when the engine is idling and in the water.
