The first of the good 4 stroke engines. Hionda has always had a name as a 4-stroke manufacturer rather than a 2-stroke one. Thus they led the world in the introduction of superb quiet efficient engines. But there is a slight suspicion that they have been resting on their laurels for the last 5 years. Yamaha have the best rep now for small 4 strokes, but I am a bit out of touch on the larger ones.
Honda have developed a jet drive outboard in 35, 65, 105hp. Although only available in the US at the moment, you can import and still get full warranty.
I am led to believe that Honda have plans to introduce those engines here. Reports from one of my buddies who has one says the are a terrific bit of kit.... and of course with no prop to worry about.. etc etc
Good engine (afaik it's the accord 2 litre unit) but as an outboard package it isn't great because waaaay too heavy. The Yamaha or Mercury stuff is loads better, imho. I have not checked the specs but the weight difference was something huge, like 100lbs+
Have a look at Suzuki - the ones I've had have been super though largest was a 90. Think you'll find that at certain power levels they are the lightest of the 4 strokes.
Yup all Hondas based on Car lumps so probably will be heavier than bespoke lump specifically designed for outboard. I gather 2 stroke injected O/Bs now not far from 4 stroke in terms of cleanliness & economy and should be slightly simpler as less moving parts.
Out of interest, how long ago was that? I've never seen a Suzuki with corrosion problems, but we are talking 4 strokes so none will be particularly old.
Afraid you probably have to go to each mfrs. web pages and do the comparison yourself.
e.g. Yam F15 4stroke Man. start - weighs 45kg
Suzi M15 4str. Man start - weighs 45kg
Suzi E15 4str Elect. start - weighs 48.6kg
The Honda 15's weight is very similar to these.