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 Post subject: Dingy Outboard Motor
PostPosted: 06 Jul 2020 10:05 
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Tactictian

Joined: 16 Mar 2007 16:10
Posts: 116
I'm in the market for a new dingy outboard motor.
I want it to be lightweight, and most of all extremley realible.

I have narrowed down my search to the Honda 2.3 hp and the Tohatsu 3.5 hp.
They both cost about $1k.
Any comments, recomendations will be appreacited.

Thanks in advance.
Nick.
S/V Angela Mia
#336
Lake Superior


 
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 Post subject: Re: Dingy Outboard Motor
PostPosted: 06 Jul 2020 19:50 
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Skipper

Joined: 04 Aug 2013 13:33
Posts: 297
I'll share my experiences with outboards, but it sounds like you're looking for something of the 'egg-beater' class that is intended to replace oars.

I bought a Yamaha 4 hp to get to the boat and back to dock when I was on a mooring (almost 30 years ago). I still have that motor and it only takes about 3 pulls to fire (because I never left fuel in it). The Fuel tank is integral in the body with the motor, so it's just a matter of 'hang it on the transom, pull the cord and go'. Very convenient. Never had occasion to sell it but I should...

The T37 came with a RIB and Honda 5hp 4-stroke - great motor, but as a 4-stroke, it is a bit on the heavy side and it sounds like weight is a factor in your search.

Here in Tampa, there are many places to 'dink' around all day, so I got an inflatable that is really too big and a 9.8 Tohatsu that is 98 lbs - supposed to be the lightest in the 10 hp class. Great motor - light enough to deal with and the dingy flys.

Except for the Tohatsu, these outboards are many years old, so there is likely something very light in the HP you're looking for - maybe something electric ?
Good luck in your search.

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Dave Lorick
Lunacy #198
Tampa, FL


 
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 Post subject: Re: Dingy Outboard Motor
PostPosted: 06 Jul 2020 22:31 
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Skipper

Joined: 14 Jul 2012 20:36
Posts: 411
Both good motors, When we cruise we take a Honda 2.0 hp and a Tohatsu 9.8 hp 2-stroke (57lbs). The Honda with it's small jets allows the carb to gag up pretty easy. I also have had two Honda 50's over the last 20 years...lets say I got pretty good at rebuilding carbs. I would go Tohatsu, they just go and go. In freshwater both will last forever, I would give a look for a used one up there. I just sold a 8hp Nissan (made by Tohatsu) that was run in saltwater for 25 years, it took its toll.

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Hull #208, Puff Card
Southern Chesapeake Bay


 
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 Post subject: Re: Dingy Outboard Motor
PostPosted: 07 Jul 2020 10:21 
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Tactictian

Joined: 16 Mar 2007 16:10
Posts: 116
Thanks guys for the feedback.
Good to know.
The reason Iím looking at the lightest outboards is that I recently had a bimini installed on my boat. Great bimini but it has SS tube braces that kick back to the stern rail.
My stern rail is now a bit crowded with the BBQ grill, Life sling, and motor. My motor hoist jib is now somewhat inhibited by the bimini braces.

The Honda 2.3 hp weighs only 30 pounds and the Tohatsu 3.5 appears to only weigh 41 pounds. I just use my motor to go ashore when anchored off an Apostile Island. Going forward I don't think Iíll be able to use my motor hoist jib . So a new lightweight motor may be a back saver..

Any additional comments?
Thanks.
Nick
#336


 
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 Post subject: Re: Dingy Outboard Motor
PostPosted: 08 Jul 2020 13:10 
Offline
Skipper

Joined: 09 Aug 2017 15:35
Posts: 456
Location: Maine/USVI
I like the biggest 2 stroke I can quickly load and unload and a hard bottom deflatable. 15 hp is great if its not overly heavy and will go back on the rail and vice versa without a struggle. Faster you can go, plane and get back and the more power for pushing, hauling groceries and/or people, hip towing and towing, the better. Merc 9.9 is the same as their 15 (or was several years ago). Just a matter of tuning and stickers. Its important to have the power. It's a safety thing. I have a rolled up deflatable as well and a 2.5 Merc. And a 4hp Merc. And a sponson canoe. I have too much stuff that I never use.


 
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 Post subject: Re: Dingy Outboard Motor
PostPosted: 08 Jul 2020 16:39 
Offline
Skipper

Joined: 04 Aug 2013 13:33
Posts: 297
I wonder if there is a way to modify something so that you can continue to use your motor hoist ? Sounds like that's the real question.

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Dave Lorick
Lunacy #198
Tampa, FL


 
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 Post subject: Re: Dingy Outboard Motor
PostPosted: 12 Jul 2020 21:38 
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Able Bodied Seaman

Joined: 24 Nov 2016 08:25
Posts: 28
We have a 15 HP 2-stroke Nissan (made by Tohatsu). Very solid motor, runs great and plenty of power. We use this for zipping around near our slip on a hard-bottom RIB. Manually lifting the Nissan to the stern rail motor mount from the water off a dinghy seems almost unsafe due to it's weight of ~80-90 lbs and for this reason is not a realistic option for us to use while cruising. It also is almost 3X the hp max rating for Achilles inflatable we use while cruising and would likely damage or rip the transom from the rubber dinghy.

While cruising the Great Lakes, we have been using a 3 HP 2-stroke Yamaha on an older, small Achilles inflatable. I estimate the Yamaha weighs just under 40 lbs, and starts on or before 2nd pull every time. Great little motor for transporting us from anchorage or mooring to land, but not really enough power to do any type of exploring with. It will not get the Achilles up on plane. As far as lifting onto the stern rail mount, this one is very easy.

Perhaps similar to you, I am looking for something that I can use on an Achilles inflatable to get up on plane and zip around but still manually lift onto the stern rail mount. I'm also looking for an internal tank option to keep gasoline containers onboard limited to 0 or 1 depending on our trip duration.

At the end of the day, I'm seeking a 6-8 hp 2 or 4 stroke with internal gas tank... I will try to report back when purchase one. Good luck in your search.

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Dan
ANTHEM
Hull #459


 
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 Post subject: Re: Dingy Outboard Motor
PostPosted: 13 Jul 2020 16:58 
Offline
Skipper

Joined: 09 Aug 2017 15:35
Posts: 456
Location: Maine/USVI
I make myself laugh. Years on the water, brand new 9.9 merc on an HBI from a friend's Post 46 stinkpot. Can't remember why, had to get the engine for some reason. Big boat and dinghy are in slip at Sapphire Marina. Undo Merc in dinghy tied to dock, pick up Merc with both hands like a serving tray, go to set it on dock at shoulder level and momentum bounces me off the dock backwards. I'm in half curl position with 60 pounds at arms length moving away from the dock unable to stabilize or get the engine down into the dinghy. Dinghy hits end of rope at an angle, over she goes in 12' of water. It's funny now, except that sick pit in my stomach.

Maybe I'd go with the little motor, opt for a 9' or better sailing dinghy.


 
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 Post subject: Re: Dingy Outboard Motor
PostPosted: 15 Jul 2020 16:25 
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Skipper

Joined: 29 Dec 2006 09:38
Posts: 583
I have some input. I think the Honda 2.3 is aircooled and they sound like a loud lawnmower if that matters to you. I have a Merc 3.5 on my Folkboat and it is very good. I do not leave gas in it and it always starts on the second pull. It is 10 years old and I recently had to put a new shift lever in it--did it myself. Simple engine. I have a 6HP Tohatsu 4S on my dinghy for my Tartan and it is too new to talk about--runs great, is reasonably quiet compared to Honda, and is almost as powerful as my old Nissan 8HP 30 years old 2Stroke which I keep around for back up. I had a 5 HP Honda 4Stroke and I really really really hated that thing. Certainly the worst outboard I have ever had. Balky to start always. After 2 seasons it developed a hole in the crankcase. I am fastidious about maintenance, but I do not flush the engine and it runs in salt--but I never have had problems with this kind of corrosion in other outboards. Looks like the folks are using scrap aluminum casting and had a large imperfection in this one from the get go--but of course it was out of warranty at that point. Glad to be rid of it. I captain a research vessel with two 90hp Hondas on it and they have their days as well---seem to have short lives. I used to think Honda was quality but I will never buy another Honda small engine again. I am not sure that Tohatsu is better over time, but I have had better luck with them.


 
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 Post subject: Re: Dingy Outboard Motor
PostPosted: 01 Oct 2020 10:58 
Offline
Skipper

Joined: 20 Oct 2006 16:10
Posts: 682
Location: Out of Waukegan, IL
I have minimal requirements for dinghy outboard so I went with Lehr propane 2.4hp. Really tiny, I can carry it in one hand, run it for an hour on a 1lb propane bottle. No gas, no choke, no layup... brilliant! I get to leave it on the boat for winter and next Spring, it starts right off.

Not great for most applications requiring some power, but I'm loving it. Great for someone who rarely uses the dinghy. (Also went with PortaBote so no more chasing inflatable leaks.)

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1981 - Full Keel - Furling Main (A boat for the lazy crew...)


 
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