Some do.
They are OK engines. I would say that Yamaha engines are the best though.
There are 3 types of engines. Inboard engines, outboard engines and sterndrive engines. Sterndrive engines are located in the hull near the stern, but have a small leg protruding through the stern for the propellor. There will be a rubber gasket sealing the outboard leg from the inside of the boat.
yes
Combustion piston engines can have two different work cycles, 2-stroke and 4-stroke. 2-stroke tends to have a better power to weight ratio, but pollute more. A 4-stroke outboard is simply an outboard engine that works the same way as a car engine.
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Yes the majority of boats have engines. Ranging from Outboards, Inboard/Outboard, and full Inboard engines. Some sailboats do not have engines but most have a small kicker engine for getting into port where they cannot sail, or also for when there is no wind.
Joan Coles has written: 'Seloc's OMC cobra stern drive, 1985-1987' -- subject(s): Handbooks, manuals, Inboard-outboard engines, Maintenance and repair 'Seloc's Mercury outboard' -- subject(s): Handbooks, manuals, Maintenance and repair, Outboard motors 'Seloc Johnson/Evinrude outboards 1956-70 repair manual' -- subject(s): Handbooks, manuals, Maintenance and repair, Outboard motors 'Seloc's Mercury/Mariner outboard' -- subject(s): Handbooks, manuals, Maintenance and repair, Outboard motors 'Seloc's Volvo Penta stern drive' -- subject(s): Handbooks, manuals, Inboard-outboard engines, Maintenance and repair 'Seloc's Force Outboard Repair Manual' 'Seloc's OMC stern drive, 1964-1986' -- subject(s): Handbooks, manuals, Inboard-outboard engines, Maintenance and repair 'Seloc's OMC Cobra and King Cobra stern drive, 1985-1995' -- subject(s): Handbooks, manuals, Inboard-outboard engines, Maintenance and repair 'Seloc's Mercruiser stern drive tune-up and repair manual, includes Alpha and Bravo, 1964-1991' -- subject(s): Handbooks, manuals, Inboard-outboard engines, Maintenance and repair 'Seloc's Johnson/Evinrude outboard' -- subject(s): Handbooks, manuals, Maintenance and repair, Outboard motors 'Seloc Johnson/Evinrude outboards 1971-89 repair manual' -- subject(s): Handbooks, manuals, Maintenance and repair, Outboard motors
4 stroke outboard motor engines are unlikely to be outlawed anytime in the near future. 2 stroke engines probably will be outlawed. 2 stroke engines pollute the atmosphere. 4 stroke engines are standard gasoline engines like are in automobiles. They will probably be required to get better pollution control equipment, which will be easy. They will probably be required to be made more efficient, which will not be quite as easy. They will probably not be outlawed.
Somewhere on engine tags or parts numbers, you're going to see (OMC) Outboard Marine Corporation. It's either a Johnson or an Evinrude.
It is often done with elderly old small boats with unreliable engines. Mounts are available to fit a range of cheap outboard engines on the stern. We did it, giving up on the unreliable inboard engine and using a modern outboard instead
Outboard marine engines, vary in reliability based on how well you maintain them as well as how well they are built from the beginning. Spending more money usually provides a higher quality product but it all comes down to how well it is taken care of by the owner.