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Go Back   SailNet Community > On Board > Gear & Maintenance > Dinghy Motor - Honda? Mercury? Yamaha? Tohatsu?
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Thread: Dinghy Motor - Honda? Mercury? Yamaha? Tohatsu? Reply to Thread
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Topic Review (Newest First)
09-15-2009 07:00 PM
Bene505
Quote:
Originally Posted by CaptKermie View Post
Where are people finding those old two strokes??? Especially the Nissan 9.8 two stroke, I'd love to get my hands on one. I currently use a Honda 5hp 4 stroke and it has not failed me in several years, good little engine but it is just slightly underpowered, I think a 6, 8, or 9.8 would be better but the big limitation is weight. I will not exceed 60# because that is about the most I can lug on and off the dinghy. The 9.8 Nissan 2 stroke comes in at about that weight and would really make my little dinghy rock. For me everything has to be luggable, dinghy included and it is 78# 9'9".
I'd try eBay and caigslist. On eBay, try this search:

(yahama,nissan,honda) (9.9,5,8)

Or something like that.

Regards,
Brad
09-15-2009 05:48 PM
CaptKermie Where are people finding those old two strokes??? Especially the Nissan 9.8 two stroke, I'd love to get my hands on one. I currently use a Honda 5hp 4 stroke and it has not failed me in several years, good little engine but it is just slightly underpowered, I think a 6, 8, or 9.8 would be better but the big limitation is weight. I will not exceed 60# because that is about the most I can lug on and off the dinghy. The 9.8 Nissan 2 stroke comes in at about that weight and would really make my little dinghy rock. For me everything has to be luggable, dinghy included and it is 78# 9'9".
09-15-2009 04:28 PM
Bene505
Quote:
Originally Posted by Bene505 View Post
I was looking at the pricess at Defender and it looks like the Tohatsu is much less expensive than the Yamaha, and the Honda is slightly more expensive. Are they pretty much created equal, or is this another case of getting what you pay for?

Anyone have preferences? Which one did you choose and how has it been for you?
Circling back on this, we chose a 11'6" Achilles RIB with a 20hp Tohatsu.

We actually sailed to within 2 miles of Defender and took a taxi to their store. We paid someone $50 to put the dinghy and engine in the back of his pickup to take it the 2 miles back to the shore. And then after unwrapping and inflating and installing and putting oil and gas in, we paid somone else with a pickup $20 to take the garbage away. I made multiple trips to get everyone to our sailboat, because we had a limited number of life vests with us. That was ok, since I needed to follow the break-in procedure of running at X% power for Y minutes. The trips back and forth gave me the chance to do the early break in steps well.

1) We needed the hard bottom becuase we always are dragging her up onto the beach over rocks, shells etc. Unless you are pulling up to mud or a dinghy dock all the time, I can't imaging having a soft bottom, unless weight and storage space are a problem.

2) We needed a boat that would hold all 6 of us. That was important to me -- no going back to get the other people left on shore. With little kids, to do otherwise would be chosing from less than desirable options of which kids to leave on shore, espcially when perhaps I'm away for the day, or the older ones aren't there. If memory serves, it has over 1600 pounds of useful load on the plackard. Even as my kids grow, I'll still be able to take all of us.

3) The 20 hp Tohatsu is the same engine as their 15 hp, only with a different carburator. For a difference of $300, we get 25% more hp. Turns out it's needed to get our crew up on plane. In Martha's Vineyard, we took the dinghy to a beach 3 miles from the boat and planed almost the whole way there. And that was with coolers, beach chairs, etc. We've also done a little tubing behind the dinghy - lots of fun.

Total cost was pretty high, but cheap due to Defender's sale. (They gave it to us at sales price even though we were a few days early.) I consider this a long term investment. Defender charged me sales tax which they say they will refund after I send them the proper form -- they will refund it because I bought the boat and engine together ans so . Registering in NY state, they only charged me sales tax on the boat, not the engine. When buying a dinghy and engine, make sure the receipt breaks out the two costs, so the state can charge you tax on only the engine.

I did pull it up onto our davits once, so it works. Of course, I had the engine off. That probably is the only downside, with that size dinghy and engine combination you need to take the engine off for trips, at leas twith my davits/ A 117 pounds, the engine is a little heavy, but by using one davit as a hoist I got it onto our swim platform and then from there it was simple lift of a few inches to get it onto the engine storage board that's mounted on the rails.

All in all, I'm very happy with the purchase, even if it emptied my wallet a bunch -- long term investment, long term investment (keep saying it to yourself). The utility of having a dinghy is so far superior to the old method of using our kayak and an old windsurf board to move people and supplies aboard. And that's not even mentioning the grandparents and other elderly friends, who really couldn't visit without our first going to a dock.

Finally, my son and I took our dinghy surfing. We put the surfboards in and I dropped him off at a couple breaks along the coast. I didn't feel comfortable leaving the dinghy at anchor in deep water or pulling it up onto shore with the wave conditions, so I didn't surf that time.

All in all, it's great to have a good dinghy. Thanks for all the help and feedback on what to buy

Regards,
Brad
06-29-2009 12:14 PM
Joel73 A very simular thread here that might have some answers for future readers of this thread: http://www.sailnet.com/forums/gear-m...tsu-3-5-a.html

We ended up going with the Tohatsu 3.5 4 stroke after much research... it should arrive today and i'll report back with our experiences with it over the summer after we put it to good use.
06-29-2009 11:45 AM
Valiente Yes, I might be interested in an after-market fitting that allowed even a three-gallon tank on my little Honda, I suppose, but that would increase my range to several hours!

As I said, if you fill up from an old thermos, it's not so bad.
06-28-2009 06:16 PM
chef2sail We have had a 4 HP Tahatsu (Nissan) for the last two years and it has been flawless. It has great power and is low maintenance and starts on the first pull. We got the 4 hp for the versatility of being able to add an external tank so we would have to refill every hour of usage

I would buy another one.
06-28-2009 12:22 PM
Valiente Unlike some, I've had a good experience with my Honda 2 HP air-cooled 4-stroke. Yes, they are noisy, and yes, my 110 lb. wife can one-arm it out of a forepeak hatch.

We ran ours for the first time this year with a fully loaded Portabote into 1.5-2 foot waves (much of which was prop wash from over-eager powerboaters. It ran perfectly and drove us at 4 knots.

I have no need to go faster than that in a Portabote.

The only criticism is that it has only about a hour of runtime in any kind of a sea. On the other hand, you can refuel from a ketchup squeeze bottle...

While I would consider a Nissan or other water-cooled 4 stroke, the air-cooled aspect and the very light weight make it appropriate for passagemaking use in that there's not a lot of "fun" trips in a tender (we have a nesting, sailing dinghy for that), and it's more about one person taking the Portabote to shore to grab a couple of jugs of fuel or a case of provisions. Two measly horses is enough for that, and I have "motor rowed" the Portabote to beyond that.

Yeah, I got laughed at, but I wanted to see if I could row at five knots. The answer is "yes".
06-28-2009 11:15 AM
BeneteauMark I've owned OB's from Tohatsu, Nissan, Mercury and Yamaha.

Our current dingy OB is a Yamaha two stoke 8 hp. (Yamaha still offers two strokes, if you can find them.) Easy starting, light for its horsepower and lots of power. Wonderful OB -- no issues at all.

We also have a four stroke Yamaha on the sailboat. Great power, but finicky about fuel. Had to have it worked on about every other year for hard starting. Am currently disconnecting the fuel hose at shutdown and let her run out of gas per dealer's suggestion. Also, am running the cleaning dose of Sea Foam all the time (2 oz per gallon). Will see how this regimen goes over time. (FWIW, besides stabilizing fuel, Sea Foam is supposed to perform the same combustion chamber cleaning as Yamaha's Ring Free.)

Prior to that, I had a Mercury four stroke on the sailboat, and wasn't happy with it at all. Initial unit was a bonafide lemon with massive starting issues the dealer couldn't fix. Mercury was no help at all, and the dealer finally replaced it after some arm twisting. Mercury #2 started OK, but was light on power. It was marginal even with a high thrust prop.

Many moons ago, I had a Tohatsu OB, but it was hard to get serviced in SE Michigan. The Nissan dealers wouldn't touch it, even though it was mechanically identical to a Nissan.

At this same time I had a little 3.5 hp Nissan for my dingy, and it was a wonderful little OB. Easy starting and no real issues.

Hope this helps.
Mark
06-27-2009 08:31 AM
jjns We bought a new 2HP honda, used it once and traded it in on a 2.5HP Yamaha.
The honda was light, that is about all the good I can say of it. The Yamaha has been fantastic though heavy (honda was about 24lbs, Yamy is more like 34lbs)
it is water cooled, gets great gas mileage. It has been in storage for 3 years now, pulled it out last week, filled the tank and it started up on a 1/2 pull.
Has lots of power will run for an hour an a litre of gas. So with a full tank and a 1gal jerry can (the no spill variety work great) I can motor for 5 hrs.
06-27-2009 08:13 AM
lancelot9898 In 1993 I bought a 5hp 2 stroke Nissan outboard and it still starts easily and runs good with very minimal maintenance. In fact I have not even changed spark plugs on it in all those years. I forget the weight, but still light enough to lift into the dingy without use of halyards etc. It will plane the wood floor Archilles with me(205 lbs) and my girlfriend(130 lbs) which is important if you want to go any distance to explore. The one negative is that some of the metal is not first rate....I've sheared off a bolt head on the flushing port and the zinc bolt. I do like the 4 stoke engines since fuel economy is better, but until their weight gets reduced I'm sticking with the old Nissan.
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