Originally Posted by peterchech
Past similar threads have had mixed answers.
Boat is hunter 25, 4400# planned displacement. Motor mostly used to get in and out of the marina, but occasionally against a 2 -2.5 knot current. I currently have a 9.9, which is more than enough power.
My fathers boat, a 32 footer with almost triple the displacement, has a 15 hp inboard which is just adequate for the coastal cruising and day sailing we do.
Is a 6 hp just too small to move my 25 footer against the 2 knot current and say a 15 knot headwind?
I had a Coronado 25 at about 4,500 lbs in San Francisco Bay, lots of steep chop and big tides. Started with a 6HP which was OK in calm conditions. Later switched to a 15HP, same size and weight as the 9.9HP. It was plenty of power, the 9.9HP would probably been fine. Unless your 9.9 is sick, suggest you stay with it. If it is a 2 stroke it probably weighs about the same as a 4 stroke 6HP, about 60 lbs?