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Old 20 December 2014, 15:46   #1
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Looking for used 115hp long, 4s or modern 2s

Bought an Osprey Viper 5.25 during the summer. She currently has an 'old' 93 Mariner 100hp 2s on her. Although there's nothing wrong with the Mariner, I am looking to update / upgrade the motor.



The transom is rated to 115hp and I would like to max it out, although if a deal was available on a 100hp then I'd also consider this as it currently feels a good match.



Being new to outboards I don't really have a favourite make or have experience, good or bad, of different ones.



Does anyone know of any good ones out there ? I'm hoping there is, to give me something to think about over the festive period.



Merry Christmas



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Old 21 December 2014, 01:41   #2
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Quote:
Originally Posted by pilotwillie View Post
Bought an Osprey Viper 5.25 during the summer. She currently has an 'old' 93 Mariner 100hp 2s on her. Although there's nothing wrong with the Mariner, I am looking to update / upgrade the motor.



The transom is rated to 115hp and I would like to max it out, although if a deal was available on a 100hp then I'd also consider this as it currently feels a good match.



Being new to outboards I don't really have a favourite make or have experience, good or bad, of different ones.



Does anyone know of any good ones out there ? I'm hoping there is, to give me something to think about over the festive period.



Merry Christmas



Sent from my Aye Phone using RIB Net
The 5.25 goes well with a 115 on the back.... However weight is important, the lighter the better...

Good second hand engines are scarce so take your time to fin the right one.
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Old 21 December 2014, 04:13   #3
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Yeah, a heavier 4s compared to a 'lighterweight' 2s is a slight concern, hence taking the power to the max to hopefully compensate. I do appreciate that this reasoning might not apply to all makes and models. Even with the 100 on her just now, she flies enough for me !!!

Out of interest, would you know of a max weight for the transom, rather than a max hp ? Hull is '94, don't think there were too many 'heavy' 4s about then !

Thanks


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Old 21 December 2014, 04:57   #4
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Selection here:

1997 Yamaha 115hp V4 ... thirsty beast!
Yamaha V4 115 outboard (2 stroke) Boat Engines for sale in Sussex, South East :: Boats and Outboards

2006 Mariner Optimax 115hp
115Hp Mariner Optimax 2006 Long Shaft Outboard Engine | eBay

2010 Yamaha 115hp Pair of engines, including counter-rotating, but could split?
2 Yamaha 115 Hp Long Shaft Engines Year August 2010, Exmouth Devon - FAFB

Mercury 90hp Optimax Could be upgraded to 125hp
Used Boats and Outboards For Sale, North Wales, Chester, Cheshire. MES Marine.

2011 Suzuki DF90
http://www.seamarknunn.co.uk/download/usedob/used.pdf
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Old 21 December 2014, 07:24   #5
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Thanks Spartacus. A few I'd seen, a few I hadn't. Much appreciated.

Are there any reputable outboard 'dealers' on EBay ? Usual suspects being 'Fatgreen' and 'paulpatch'. I think the other EBay regular 'outboards12' is currently being mentioned (and not in a good way!) in the current Yamaha 60hp thread.

Thanks again




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Old 21 December 2014, 13:26   #6
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Are there any reputable outboard 'dealers' on EBay ? Usual suspects being 'Fatgreen' and 'paulpatch'. I think the other EBay regular 'outboards12' is currently being mentioned (and not in a good way!) in the current Yamaha 60hp thread.
There are I'm sure. If I was using Ebay, then just use it as shop window. Do your research, and never hand over cash for an engine sight unseen. Genuine sellers are always available, can talk at length about the product and able to answer queries.

You want paperwork, receipts and history, and of course to see the engine running from cold. Goes without saying you'll also need a cylinder compression test. Draper make an inexpensive guage for 20 or so - so you can test yourself. You should be looking for equal pressure across all the cylinders give or take a few pounds.

What you can do is use the main dealer outboard network pages for Suzuki, Yamaha, Honda, etc. That gives you direct links to numerous marinas and marine workshops. Quite a few have used outboard sections which you rarely see with a Google 'find all' search. It's a little work but worth it.

Good luck with your search.
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Old 21 December 2014, 13:58   #7
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Good man, thanks, appreciate the help and advice. I won't be rushing into a purchase, but certainly don't want to miss out on a 'good' 2nd hand engine if one came along.


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Old 21 December 2014, 17:29   #8
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I don't claim to be an expert on ribs, more of an enthusiastic amateur. However my dive club has a 5.25 Osprey Viper. We have a 115HP Yam 4 stroke on the back.

Unloaded she goes really well - quick up on the plane and can happily hoon along at well over 30 knots.

Fully loaded with 6 divers she can struggle a bit - a bit bottom heavy - and struggles to trim out a bit.

Hope this is useful.

Janos
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Old 21 December 2014, 18:22   #9
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Thanks Janos, very helpful indeed. Confirms my decision to max the hp if I can. Although my cargo, if any more than just me, will probably just be my kids and not kitted out divers, I'd still like it to be 'fun' when loaded.

Cheers


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Old 22 December 2014, 03:17   #10
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115hp on a 5.25 should give you 40knots if propped right (19") However if you regularly carry that sort of payload you would want to run a shorter prop to cope. Probably 17 maybe even 15".
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