My wife and I were just at a boat dealership today and SHE noticed that if you compare an I/O and outboard boat that are similar in length, the outboard has quite a bit more interior room than the I/O. 4-stroke outboards take care of that though. They are also more efficient than the typical 2-stroke outboard. They do have a little cleaner look although I wouldn't say an outboard makes a boat ugly. I/O's take up room inside the boat too.Īll that said, I/O's are fine. No winterizing to speak of on an outboard either. In 10 years I never did anything else and it ran like a champ. Fresh gas, a couple sets of spark plugs, 2 impeller changes, a little stabil and sea foam every now and then and that's it. It ran like a top too and required almost no maintenance in the 10 years or so I owned it. As a matter of fact I had a 37 year old one with a 34 year old outboard until I sold it a couple months ago for another outboard boat. Well I see way more old outboard powered boats than i do I/O's.
I personally will never own another I/O as long as I own a boat. lunch an engine, and its just as much, if not more, work and money to change it out than an outboard.Īgain, that 10GPH fuel beast isnt any good either! you'll be replacing your manifiolds every 4-5 years, and as mentioned, the bellows, and all that extra stuff. You end up with 3x the amount of crap that can break.Ī car engine should not be in a boat IMHO. Keep them tuned, run some seafoam through them every so often, new impeller as needed, and your good to go.Īn I/O is immensely more maintenance, you have all of the wearable parts of an outboard (impeller, PT&T, etc.), PLUS all the wearable parts of a car engine, (belts, hoses, alternator, starter), PLUS all of the wearable crap in the gimble (bellows, gimble housing, the plate that adapts the driveshaft to the motor, u-joints, etc.). I think overall O/B's are more fuel efficient (which is a big factor for me), easier to work on, and lower overall maintenance costs. As stated both have advantages and disadvantages.
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