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  #11  
Old 04-12-2013
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Re: Outboard Advice

Nissans are rebranded Tohatsus.

I have the Honda BF2A (older 2hp model). It's very light and I don't find it that loud compared to other 4 stroke engines, including the 4hp Tohatsu. The engine note is a bit different than water cooled engines, but they are all loud. It's a work horse of an engine. No neutral can make life interesting though (the newer models have a centrifugal clutch that gives you a neutral). I can't complain about the price, but bought it used.
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  #12  
Old 04-12-2013
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Re: Outboard Advice

I have a little 4-stroke Suzuki 2.5hp on my dingy, that would probably do the trick. The main advantage over the Honda is that is has a proper neutral, so when you start it with a few revs and a bit of choke, it doesn't engage the centrifugal clutch and drive itself away from the dock whilst you are still loading things on
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  #13  
Old 04-13-2013
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Quote:
Originally Posted by jimgo:1015599
A few questions:
How much does your boat weigh?
How long do you plan on (typically) running the engine/motor?
Are you keeping the boat on a trailer, mooring, or slip?
How available is an electrical supply?
Is your boat's transom set up for an engine?
Does the boat's manufacturer specify a maximum engine size/weight?

At 17', I doubt the boat will be TOO heavy, so like Mac said, a trolling motor might work fine. I'm considering that option for my 15'. But then I need power to it. If I can rig up a solar panel, then I'll be fine, because I'd mostly be using the boat on a small lake, won't need to run the motor more than about 20 minutes (max), and waiting several days for the battery to charge won't likely be a big deal. Keep in mind, though, that in addition to the motor, you're looking at buying a battery and a solar panel, too. Not that they are incredibly expensive, but still... If you're not going solar, you need a way of charging the battery aboard the boat, too, otherwise you'll be lugging a very heavy battery home.

I've seen discussions of the propane engines, and they look interesting. I'm just not sure that I want to carry all of those little canisters with me all the time. You'll have to find a way of keeping the canisters safe while you transport/use the boat, too. I'm not sure I like the idea of driving all over the place with the canisters in my trunk, given the conversations we've seen here about propane.

Gas is tried-and-true, but not without its issues, too. Gas engines are heavy and loud, and they seem to have the largest carbon footprint (though there are arugments that electric is bad, too, if you're charging the batteries from a power plant rather than solar). They can also be tempermental, and difficult to start.

Each of the options has its advantages and disadvantages (in predictable fashion, I've focused mostly on the disadvantages). You'll have to figure out which one is right for you.
It weighs 575 lbs. It will be trailered. There is no electric source. There is a bracket in place for a motor but I have no specifications for motor size. It is difficult to estimate the amount of time I'd be running it. I just want to putt about in the back bay. Maybe cruise the ICW a bit.
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Old 04-13-2013
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Re: Outboard Advice

Quote:
Originally Posted by Ei Leen View Post
It weighs 575 lbs. It will be trailered. There is no electric source. There is a bracket in place for a motor but I have no specifications for motor size. It is difficult to estimate the amount of time I'd be running it. I just want to putt about in the back bay. Maybe cruise the ICW a bit.
Unless the hull will plane and steep chop is not a big factor, 2HP or so should handle it. We had the 2 HP Honda on a 12 foot Jon boat, total loaded weight at about 600 to 700 lbs and GPS speed was about 5 MPH at 6,000 ft elevation, not bad for a boat shaped like a brick. We went to a 6HP Tohatsu 4 stroke, same weight as the 4HP, and it planes the same boat at about 10.5 MPH at 6,000 ft.

If you are going to be in areas where there is commercial traffic, suggest you have the ability to get out of their way if the wind dies, at the very least, a good set of oars.

Paul T
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Old 04-13-2013
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Re: Outboard Advice

Find someone with a Honda 2hp 4stroke and listen to it running before you buy one. IMHO they are considerably noisier than a water cooled motor.

In your position I think I would look for a used 2hp 2st in good condition. Be aware that the same engine is sold with many different badges on the side. Yamaha Mariner Tohatsu Nissan etc. They are lightweight and very reliable.
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Old 04-13-2013
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Re: Outboard Advice

+1 on the Tohatsu outboards. I've had really great experience with their after sales support over here.

Apart from the weight of your boat, the area you will be using your boat in (lake vs sea and streams/currents) may well determine what outboard you are going to use. When I started sailing on a reservoir we were only allowed electric outboards. Then up north in Scotland we had very strong currents and I wouldn't go with anything less than the maximum horse power outboard my boat could deal with. Obviously, bigger is not always better - you will not get a displacement hull of a sailboat faster than its hull speed. What is your transom height ? Don't buy a short shaft when you actually need a long one !
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Old 04-13-2013
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Re: Outboard Advice

A cheap used 2 stroke, that is light weight, and produces under 3.5hp is a way to go, for when you turtle, you can get another one!
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Old 04-13-2013
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Re: Outboard Advice

I had a 16'8" daysailor for 10 years in an area with tidal currents. No question that a 2 hp will move it under good conditions, but your displacement with 4 adults and gear could be over 1000#. If you have to push against current and a chop, you'll want at least a 4 hp.

Liquid gas is the fuel of choice. Propane is fine if you store it properly. A trolling motor is not a serious option for your situation, IMHO.
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Believe it or not, someone offered me a free motor. Downside? It may be too much motor at 7.5 and it is a 2-stroke, which I'm told requires a precise mixture of gas and oil. Dunno. What do you think?
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Old 04-13-2013
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Re: Outboard Advice

A 7.5 Hp 2 stroke will probably weigh about 45 lbs. If you know the maximum HP rating for the boat and it is less then 7.5HP just run it at about half throttle. A Tohatsu 4HP weighs about 60 lbs. Don't know what your bracket looks like but if it sags or flexes with a bigger motor you may want to stay in the 2HP category.

I have owned many 2 stroke outboards and motorcycles. IIRC, from about the early 70's on they all had electronic ignitions. Just feed them new plugs once and a while and they will last virtually forever. Everything I had ran on a 50:1 fuel to oil ratio. You may be able to download an owners manual by doing an on line search of the make, model, and year.
Free is good, not much to lose.

Paul T
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