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Though it is not extraordinary to have dual outboards (standard on Tiki 38 and larger), especially with so many people modifying their classic designs, and Wharram now offering an update to accommodate dual outboards, the difference with mine will be that there will only be one dedicated to the boat, and the other will be the dingy engine.

The basic idea is to purchase a pair of Yamaha 20hp manual (now called "portable") outboards. I will create a single custom drop down mount (similar to Tiki 38, but longer and wider) that can hold both engines side-by-side. One will stay on the mount, and the other will be used on the dingy when the boat is not underway. I will rotate engines to the dingy from time to time to keep the hours similar.

This system accomplishes multiple tasks: I will have up to 40 hp to power the boat when necessary; I will always have an engine available mounted on the boat in the case of an emergency; there will be redundancy for both the dingy and the boat since both engines can provide service for either boat.

The biggest issue to solve is control of two manual outboards when used in service on the main vessel. With tiller controls, I will need to backyard engineer a set of easily attached/removed controls for the throttle and gear shifters that can be operated from the cockpit. I do not have the solution now, but I will figure it out.

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Hey BB, That could get old/tiring pretty quickly, all the changing over.
I have also noticed that any dingy motor over 15 hp becomes a target for thieves in certain cruising grounds and will have to be taken on board every night. I have always preferred oars myself for the dinghy, keeps me fit ;-)

Oars? That's funny. I have four children and a wife to haul around, plus the requisite hauling of groceries, diving supplies, and beach gear to consider. A 12' R.I.B. with plenty of power is the only dingy in my future...

I have been cruising for a lot of years and in a lot of places. I am also not one to do a lot of moving, spending more than 95% of my time anchored in one desirable place or another. The number of times that a motor would be swapped from dingy to boat would be less than once per month on average. Even island hopping in the Bahamas would not necessitate swapping an engine, as a single 20hp motor would suffice.

I usually change or remove the stickers on my outboards. Beyond that my stuff gets heavily used and tends to take on a bit of a beat up appearance in a very short time. Kids are very hard on equipment. One year I towed a 14' Livingston with a 30hp Yamaha while cruising and no one tried to steal it. It was ugly and always well secured.



Penn D said:

Hey BB, That could get old/tiring pretty quickly, all the changing over.
I have also noticed that any dingy motor over 15 hp becomes a target for thieves in certain cruising grounds and will have to be taken on board every night. I have always preferred oars myself for the dinghy, keeps me fit ;-)

Sweet, sounds like your sorted...

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