I have a 9.9 hp Evenrude outboard that is an aux. for my 28' Lancer sail
boat. The boat is 3/4 keel with 6,000 lbs. displacement. I have be told
that this engene can but upgrade to 15 hp. by simple modification to the
carberator. Has anyone had experience with this proceedure?
Second question, will the increase hp give me any more speed? I don't
have any way of measuring speed on the boat other that a hand held GPS,
which indicates I get 5 to 6 knots under power.