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Old 23 November 2011, 04:58   #11
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Country: UK - N Ireland
Town: Bangor, Co Down
Boat name: Ribeye & Tremlett 15
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Engine: Yamaha F40, Merc 500
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Quote:
Originally Posted by Downhilldai View Post
Also sold as a 45hp Motor in the '90s and branded as a 'Classic Fifty', due to it being, as Nos stated earlier, the old 50hp, 4-cyl, Merc 50 from bygone days. It may have squeezed 50hp out at the crankshaft in the red & blueband days, but when standardised propshaft rating came around, it had to be downgraded.

I'd steer clear, unless you want it for some 'classic' project boat.
I am a fan of these engines



BUT for everyday use today, I would go for a newer engine as some have said above in the other posts,

I have had my 1976 Merc 500 from new, still running on original spark plugs !! a good engine in it day but at WOT will use 5 gals per hr & at 5 > 10mph will use 2 1/2 gals per hour
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Old 23 November 2011, 07:44   #12
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Originally Posted by arkamelis View Post
so what was a good mercury model in the 90's
Does it have to be a Merc?

Personally, I'd be looking for a 3-cyl Yam or Soozook, but the 50/60hp Merc/Mariners with one-piece cowls, which Nos mentioned earlier are ok too.
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Old 23 November 2011, 10:38   #13
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That Mariner 30hp of mine has has arrived. Great condition. 1998, Will be put through its service then be available. It's electric Start, manual tilt. With remotes. PM me if you would like further details

Peter ~ Boatsandoutboards4sale ~ askboatsandoutboards4sale@sky.com ~ 07930 421007
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Old 23 November 2011, 10:49   #14
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Or eBay this number 250938523806

Yam 40. Pre mix. Manual tilt. Being sold by a trader. 575 including delivery. You'd have to chance it runs right. Age around mid-late 80's. Looks ok if a bit tatty, has had hood replaced or leg sprayed.

Cheap option ????? I don't know the seller.

Peter ~ Boatsandoutboards4sale ~ askboatsandoutboards4sale@sky.com ~ 07930 421007
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Old 23 November 2011, 17:07   #15
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Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
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Originally Posted by arkamelis View Post
hi
any pictures of these outboard ? give me some idear what ones thay are.

matt
The one on this, or the same shape 3 cylinder Merc


Or this:-

Mariner 50 HP, two stroke outboard-engine | Flickr - Photo Sharing!

A good power trim Yam 50 3 cyl would be good too.
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Old 23 November 2011, 19:30   #16
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Hi all
thank you for all the info, i have almost brought myself a Mariner 55hp electric start two stroke with gas ass lift, its waiting to have a water pump and impella fitted and its already to go, i got it for a good price and from a marine/boats sales place, thay have tested for compression and good on both cylinders, i beleave its a 1991 model but will find out for sure next week, i also have the option that theres a mercury 40hp 4 cylinder at there workshop that was brought in has a non runner, which if the problem isnt to big and can be sorted thay will get it to good running condition and if i still wanted the 40hp mercury thay will part ex back the mariner 55hp, if at this time i dont want the 40hp mercury there is or will be on offer a mercury 60hp 3 cylinder eptt, which thay would take back the 55hp mariner and for some extra cash i could get the 60hp 3 cylinder, dont know what age the 60hp is, but i did notice on the cowl/cover there was two bands of lines not stickers but moulded plastic lines/bands round the cover, all in all more options in the long run if not pleased with the mariner, talking of which any views on the mariner 55hp, good and bad points ?
matt
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Old 23 November 2011, 19:43   #17
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, talking of which any views on the mariner 55hp, good and bad points ?
Weak gearboxes. Almost every one I see for sale or non-running has lower unit trouble. DON'T stand it on the skeg!

If your boat is rated for the 60hp 3 cylinder Merc, it'll be a far better buy.
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Old 24 November 2011, 11:27   #18
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One wee thing about the 3 cyl Clamshells (although possibly posted too late for this decision!) if you get a late one with retarded spark, re- jetted, higher RPM & no thermostat they are about 100 times less likely to self distruct than the original "blueband" versions.

The one massive good point about those 3 pot clamshells is the weight - you get 60 (or 50) gee gees out a lump that clocks in at 83Kg even with PT Ypu also get a gearbox on a size par with a Suz DT30, so much reduced drag... Most engines of that ballpark you are looking at 110kg minimum and a gearbox that is shared with the 90 in the range!
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Old 24 November 2011, 13:17   #19
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Send a message via MSN to badbaws
We used to run a 4 cyl 40hp merc classic on the school safety boat from 1991 - 1996, when it was replaced by a 3 cyl Yam 40hp, and the difference was staggering.. the Yamaha was a much better engine and about 1/3 more fuel efficient and gave 3 knots higher top end speed.
That was on a 4m Avon searider.
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Old 24 November 2011, 15:06   #20
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We used to run a 4 cyl 40hp merc classic on the school safety boat from 1991 - 1996, when it was replaced by a 3 cyl Yam 40hp, and the difference was staggering.. the Yamaha was a much better engine and about 1/3 more fuel efficient and gave 3 knots higher top end speed.
That was on a 4m Avon searider.
i should have gone for that 40hp 3 cylinder yamaha on ebay that the lads surgested. too late now ile be picking the mariner up on wednsday
finger crossed
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