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Old 24 May 2013, 05:07   #1
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Country: UK - Scotland
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Boat name: my rib
Make: avon
Length: 4m +
Engine: petrol
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Is my outboard to heavy

Sorry if this seems like a stupid question, but I'm new to all this, just wanted to make sure before I go too far. I have recently upgraded from a 20hp to a 40hp outboard with power tilt and trim which I have found to be a lot heavier as it would be, but was wondering if my 4 metre avan can take this extra weight, as I would sooner know now before I sell the old one? I have added a couple of pictures.
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Old 24 May 2013, 05:36   #2
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Boat name: Wildheart
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The boat should have a plate on it that tells you the max weight & HP.

Some older boats's didn't have the weight on the plate, so as a general rule if you get an engine of a similar vintage to the boat and it's at or below the Max HP, chances are you'll be OK, but no guarantees.

Other thng is if the boat is new, it will be designed to take a lardy 4- stroke. That looks like a 2- stroke Yammy? (which will be much lighter than what a new boat can handle)

What model is the engine?
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Old 24 May 2013, 06:22   #3
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the only thing i can find is a black patch on the rib tube with AVB18003F101 on it i guess this is maybe not anything at all .the rib its self would not be that new by the looks of it but it is still very clean and yes your right the Yammy is a 2 -stroke .
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Old 24 May 2013, 06:34   #4
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That serial number makes it a 2001 boat. That engine doesn't look too big IMO. Not like some of the stuff you see on ebay! Probably worth checking its within the limits of that hull that Avon state so as to ensure it's insured in the event of an accident. Is that a Supersport?
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Old 24 May 2013, 06:58   #5
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sorry for my ignorance but how would i know if it was a supersport i think the only thing on it is Avon.
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Old 24 May 2013, 08:36   #6
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It looks like a Supersport to me.

It should be OK-but you need to seal those holes in the transom if they aren't already sealed!
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Old 24 May 2013, 09:25   #7
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Country: UK - Wales
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Boat name: Mellifera
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Looks exactly the same as my supersport, I had a 40hp mariner/Yamaha on the back before I moved the engine to my searider.

It was fine with that on the back, in fact it flew!!! It did around 30 knots and was very stable in flat water but a bit skidy in turns and had a tendency yo leave the water quite easily

Plenty of freeboard on the transom though, more than the searider anyway...

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Old 24 May 2013, 11:14   #8
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Your rib looks very much like mine, guess that must be what it is, but I would never have known as there is nothing on it. I think I have filled all the holes in....well I hope so anyway as I have had to put on a new transom to raise the height as my old outboard was a short and this is a medium. I was just worried that the power tilt and trim had added to much weight, that and going up to a 40. I was thinking that I would have to give up my 6hp auxiliary as that may be asking to much with this outboard.
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Old 24 May 2013, 11:58   #9
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Supersports are a hoot.

I remember years ago having a go on one of the little ones with a tiller control 8Hp on the back and trying to see how far I could make it go sideways in a straight line before it actually started to turn!
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Old 24 May 2013, 12:12   #10
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Does it have a flooding hull? like the searider.

Looking at a boat with the same colour tube advertised as a searider (the stern photos shows the big hole)
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