Boat motors overheating must be in my genes or something. My son and I towed our 25' Sportcraft 400 mi to Lake Ontario last weekend only to have the engine water circulating pump fail. This week I was getting my 17' Henry O ready for Chincoteague and it is overheating also. The latter happens quite regularly, and I usually change thermostats as a spring maintenance item. I didn't have a set of Johnson V4 crossflow thermostats so I ordered them yesterday from BoatFix. UPS just delivered and the trip for this weekend is on!!!!!! Yay BoatFix.