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Old 19 November 2011, 11:28   #1
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Country: Luxembourg
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Make: Searider 5.4
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Need advice - SR 5.4 + Yamaha 115HP 4 stroke?

I found 5 years old Yamaha 115 HP 4 stroke and I do not know if this engine could go to my Avon Searider 5.4?
Is it not to heavy?
Really need your advice guys.....
Thank you
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Old 19 November 2011, 11:41   #2
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that is going to be too heavy i'd say.

most seem to go with 90hp yam 2 strokes as the ideal setup.

cheers
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Old 19 November 2011, 14:15   #3
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No chance. Best bet is to let me buy the 115hp and I may have a Yam 90hp 2 stroke here at the moment which could be available at the right money

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Old 19 November 2011, 19:58   #4
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The transom might handle the weight id you beef up the support bars. ,make something up out of scaff poles and plate but it would porpoise a lot providing the stern didn't didn't forget to float. A Yam 115 2 stroke however is a lovely solution.

How heavy is the four stroke I'm thinking 195 kilos which is a lot of weight tats even more than me!

The Suzi 90 (new model) is a light 4 stroke and that comes in at 148 kg but thats still a bit lardy
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Old 20 November 2011, 19:38   #5
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SR5.4 is rated to 90hp max.
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Old 20 November 2011, 19:49   #6
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Quote:
Originally Posted by Downhilldai View Post
SR5.4 is rated to 90hp max.
But apparently " Hull rateings are flexable and open to change."
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Old 22 November 2011, 05:45   #7
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Country: USA
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Boat name: Heavy Hitter
Make: Zodiac
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Engine: 115hp Outboard
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The 115 4-stroke would be a bit heavy...I run a 115 2-stroke on my 5.3 Zodiac and it does very well. Like others have said the 2-stroke 90 will get the job done. The Zuki 4-strokes in that class are impressive too.
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Old 24 November 2011, 20:25   #8
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My 5.4 Searider states 120 hp and 8 persons on its build plate?
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Old 24 November 2011, 20:53   #9
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My 5.4 Searider states 120 hp and 8 persons on its build plate?
Back in '91, I bought a new Fletcher 140 that was rated to 85hp on the manufacturer's plate, while the handbook, sales brochures and all other 140s I've seen from that era were rated to 75hp.

And No, I hadnt' tinkered with the plate.
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Old 25 November 2011, 08:17   #10
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Too heavy, even if transom takes it, it will sit too low in the water. Water would come over the transom if a duck swam past! As for reversing, best have a bilge pump ready or some plastic scoops.
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Old 25 November 2011, 09:01   #11
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So how heavy is a 90/115 2 stroke? I'm guessing the 4 stroke is around the 200 kilo mark.
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Old 25 November 2011, 10:03   #12
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90 yam (3C) 2 stroke is about 125kgs.

115 2 stroke (V4) Yam is about 160kgs.

100 4 stroke is 170kgs.

115 4 stroke Yam is 190kgs.
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Old 02 December 2011, 15:55   #13
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What with Opti 90 HP?

or E-Tec 90HP?
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Old 02 December 2011, 18:44   #14
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Quote:
Originally Posted by HUMBER P4VWL View Post
Too heavy, even if transom takes it, it will sit too low in the water. Water would come over the transom if a duck swam past! As for reversing, best have a bilge pump ready or some plastic scoops.
Agreed.
Years ago my old dive club had an early '80's SR5.4 with a 115hp Yam 2 stroke, great fun but it shipped water over the transom even when lightly loaded, mind you it did have a double A frame weighing about 2 tonne.
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Old 05 December 2011, 10:01   #15
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Hi Zubol

you sorted yet? and did you find out how many hours the yamaha had on it?
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