Outboard motor size
That's kind of a hard call because of the area where you sail and the size of your boat. I'm not sure if a 4 hp can stem a foul current in places like Wood's Hole on the Cape. My Johnson 8 was able to do it and maybe a 6 Hp could do it also. I'm not sure. For all around motoring up the Cape, I would use at least a 6 HP. A four will work OK in the harbor, but for my 222, an 8 Hp has always got me through Wood's Hole and I've motored through all the passages in the Elizabeth Islands including the Canapitsit Channel. We get strong currents in the Tiverton RI basin sometimes and my 8 is able to get through in foul currents. I think that a 4 would push that boat real nice, but I'm not sure how it would do in a strong current in a narrow passage.Joe