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Old 28 November 2009, 14:49   #1
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Reserve outboard size again

Hi, I am after a reserve to go on the back of my Avon 560 Rib, I was going to get a 4 or 5hp 2 stroke but a local guy has offered me his very nice yam 2.5hp 4 stroke, I think this would be to small but he said he used it without a problem on his 20ft Hunter, any views on this would be great

cheers Martin
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Old 28 November 2009, 15:11   #2
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Originally Posted by martin33100 View Post
Hi, I am after a reserve to go on the back of my Avon 560 Rib, I was going to get a 4 or 5hp 2 stroke but a local guy has offered me his very nice yam 2.5hp 4 stroke, I think this would be to small but he said he used it without a problem on his 20ft Hunter, any views on this would be great

cheers Martin
Too small Too small!

I tried a 2.5hp on the back of a 5.4m RIB in the sheltered waters of Portsmouth Harbour. Wind speed was about 15 knotts and just had no steerage what so ever.

Go for a 5 or 6.
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Old 28 November 2009, 15:11   #3
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Your title-line suggests that you know that this is a recurring thread. Which is why you had planned on a 5hp. Which is why you know the "Local guy" is a lying no-good cnut. But you'd like us to confirm it anyway

Fair 'nuff. He's a fcukin' lyin' cnut.
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Old 28 November 2009, 15:26   #4
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Too small Too small!

I tried a 2.5hp on the back of a 5.4m RIB in the sheltered waters of Portsmouth Harbour. Wind speed was about 15 knotts and just had no steerage what so ever.

Go for a 5 or 6.
Ok 5hp it is then, would you go for a nice used 5hp 2stroke with a built in tank? or get a later 5hp 4 stroke and run it from the inbuilt Rib tank?, I was thinking 2 stroke though for the weight
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Old 28 November 2009, 15:37   #5
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For that size RIB, keeping things as light as possible is pretty important and a 2 stroke fits the bill. However I like convenience and would like the option to run off the main tank. I would see if you can get a 4 stroke with an internal tank, but plugging it into the main tank has advantages.
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Old 28 November 2009, 15:45   #6
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For that size RIB, keeping things as light as possible is pretty important and a 2 stroke fits the bill. However I like convenience and would like the option to run off the main tank. I would see if you can get a 4 stroke with an internal tank, but plugging it into the main tank has advantages.
I think a Merc 5hp 2 stroke was just under 20kg, I think the Merc 5hp 4 stroke is around 27kg
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Old 28 November 2009, 16:00   #7
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Aim for a minimum of 1HP for each metre of boat length and then find the lightest O/B you can.
Tohatsu 2 strokes are reliable and light
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Old 28 November 2009, 21:12   #8
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Your title-line suggests that you know that this is a recurring thread. Which is why you had planned on a 5hp. Which is why you know the "Local guy" is a lying no-good cnut. But you'd like us to confirm it anyway

Fair 'nuff. He's a fcukin' lyin' cnut.
really "nice" post from the irish guy.
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Old 28 November 2009, 22:25   #9
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really "nice" post from the irish guy.
Oh I was just messin' and I hope martin33100 knows that, Limey Linda. Or would you prefer I just called you the mexican dude, or the english bloke?

I recall your recent post in response to some minor instance of stupidity:
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You must be Irish
I'll take a lesson in manners from you when you have some to spare.
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Old 28 November 2009, 22:49   #10
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