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Old 12 June 2013, 04:51   #1
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What is the lightest 40hp outboard

Hello, I have a Zodiac Futura 3.8m

They are typically weak around the transom seams.

So, does anyone know whats the lightest 40hp been produced? I don't mind having an old engine.
Obviously manual start and t&t is the first weight saving option.

Any ideas welcome
Thanks
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Old 12 June 2013, 09:18   #2
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I had a 2 stroke mariner ex RNLI outboard 40 hp and If I recall corectly it was 85 kgs
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Old 12 June 2013, 10:26   #3
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Merc Clamshell 60Hp - 83Kg!


Lots of old brochures with the spec pages scanned here:

Boatinfo - The library, containing manuals, brochures and other technical documents from the last hundred years!

Just make sure you have a good internet connection before clicking on it.....
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Old 12 June 2013, 15:14   #4
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Tohatsu 40/50 but its too much for a 3.8 futura i think . A 30 hp 2 stroke would be better balanced and probably go as well .
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Old 16 June 2013, 05:47   #5
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Originally Posted by ian parkes View Post
Tohatsu 40/50 but its too much for a 3.8 futura i think . A 30 hp 2 stroke would be better balanced and probably go as well .
this ^
the tohatsu/yamaha 2 stroke 30's are very light
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Old 16 June 2013, 06:28   #6
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Quote:
Originally Posted by NickHoult View Post
Hello, I have a Zodiac Futura 3.8m

They are typically weak around the transom seams.

So, does anyone know whats the lightest 40hp been produced? I don't mind having an old engine.
Obviously manual start and t&t is the first weight saving option.

Any ideas welcome
Thanks
Unless you're trailering - stick to a Yammie 25hp. More than enough power for 2-up and a joy to tiller steer. The Yamaha 40V (2-stroke) weighs in at 85kg. Fantastic power to weight ratio, but you'll be stern heavy if you opt to tiller steer, plus you'll need someone up front just to keep the bow down.
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Old 16 June 2013, 12:59   #7
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Plenty with any 30 HP, 2 strokes engine if not outting heavily loaded and definitely place a mate up front for better sib/engine ballance.

The lightest 40 HP 2 strokes, 2 cylinder engine is a Tohatsu M40C (compact) just 59 kilos compared to 51-52 kilos for any other 30 HP engine.

Happy Boating
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Old 17 June 2013, 01:56   #8
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Thanks for all the input everyone, the info has been a game changer!
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Old 17 June 2013, 02:13   #9
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Hi one more thing, do folks think that a tohatsu. 30hp will have enough grunt to pull a novice skier out the water with a zodiac future 3.8?
Thanks
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Old 17 June 2013, 04:49   #10
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Hi one more thing, do folks think that a tohatsu. 30hp will have enough grunt to pull a novice skier out the water with a zodiac future 3.8?
Thanks

I dont think so, my 3.8 Fastroller & 25hp wont pull an experienced teenager without superfat skis, novice skiers require a lot more grunt when learning.

The 25/30 is enough for most things, but if you want to ski you are going to need a 40. I'm pretty sure the lightest will be a mid 90's manual start/tilt Yamaha 40hp 3 cylinder (no autolube) at around 80kg. Its still a heavy lump, but I had the 50hp (same block) on the slightly larger Futura Sport in the late 90's and it was superb.

If you have forward steering, go for the 40hp, if you are tiller steering don't, 40hp is way over the top for that boat. You really need a trailer as well, 80kg engines are very difficult to move.
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