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Old 16 June 2010, 11:00   #1
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New engine for Tornado 5.3

Hi,

My diving club needs to replace the engine on a 5.3m Tornado RIB. The current engine is a 90hp Yamaha 2-stroke, and obviously this model is no longer available.

We'd like to stick with a Yamaha, and as the boat is rated for max 90hp, it looks like the 80hp 4-stroke engine is the only option. I'm a little concerned that since it's 50kg heavier than the current engine, it might be a bit under powered. The boat usually takes 6 divers so it's a heavy load.

I'd be interested to hear any opinions, especially from someone with a similar boat/engine combination.

Thanks!
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Old 16 June 2010, 11:05   #2
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Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
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Originally Posted by MGal View Post
Hi,

My diving club needs to replace the engine on a 5.3m Tornado RIB. The current engine is a 90hp Yamaha 2-stroke, and obviously this model is no longer available.

We'd like to stick with a Yamaha, and as the boat is rated for max 90hp, it looks like the 80hp 4-stroke engine is the only option. I'm a little concerned that since it's 50kg heavier than the current engine, it might be a bit under powered. The boat usually takes 6 divers so it's a heavy load.

I'd be interested to hear any opinions, especially from someone with a similar boat/engine combination.

Thanks!
Hunt about and you might find a new old stock Yam 90. They are out there-alog with a lot of 'reserve' engines which have only been run to make sure they work in an emergency.
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Old 16 June 2010, 12:49   #3
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Country: UK - Wales
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Make: Vipermax 5.8, SR4.7
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Originally Posted by Nos4r2 View Post
Hunt about and you might find a new old stock Yam 90. They are out there-alog with a lot of 'reserve' engines which have only been run to make sure they work in an emergency.
Here you go:

http://rib.net/forum/showpost.php?p=355388&postcount=2
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Old 17 June 2010, 04:00   #4
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Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 60hp + aux
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Quote:
The current engine is a 90hp Yamaha 2-stroke, and obviously this model is no longer available.
I know of two for sale:

http://www.billhigham.co.uk/submit_f...se&m_type=used outboard

http://www.outboard-services.com/ (Isle of Man)
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