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02 September 2013, 19:13
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#1
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Administrator
Country: UK - England
Town: Brighton
Length: 3m +
Join Date: May 2000
Posts: 7,109
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Quietest small outboard?
Any nominations for the quietest 5ish hp outboard? Presumably it will be a 4-stroke, but is there much difference between makes?
Are the 2.5/3.5hp motors noisier than the 4/5/6s?
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02 September 2013, 19:20
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#2
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RIBnet admin team
Country: UK - England
Town: The wilds of Wiltshire
Boat name: Dominator
Make: SR5.4
Length: 7m +
Engine: Yam 85
MMSI: 235055163
Join Date: Jul 2005
Posts: 13,069
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You're not trying to sneak up on wIllFish again are you? He's wise to it, and he's waiting brandishing a copy of 'Pigeon Fanciers Weekly'.
IMO the 4/5/6hp motors are significantly quieter.
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02 September 2013, 19:35
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#3
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Member
Country: UK - England
Town: Plymouth
Length: 6m +
Join Date: Mar 2011
Posts: 2,693
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The twin cylinder motors are quieter (smoother) than the singles, although they generally start at 6hp and are heavier too
www.BoatsandOutboards4Sale.co.uk
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02 September 2013, 19:49
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#4
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Member
Country: UK - England
Town: Royal Wootton Bassett
Length: 8m +
Engine: 250
Join Date: Jul 2008
Posts: 8,047
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The little honda's are quite good, air cooled too
Quite large on the top for an aux though
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02 September 2013, 20:10
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#5
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Member
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,299
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The air cooled Hondas I've heard made a right racket.
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02 September 2013, 20:14
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#6
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Member
Country: UK - England
Town: Royal Wootton Bassett
Length: 8m +
Engine: 250
Join Date: Jul 2008
Posts: 8,047
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Quote:
Originally Posted by Downhilldai
The air cooled Hondas I've heard made a right racket.
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Dunno, it didn't fit on between the outboard and the aframe But liked the air cooled no impeller approach
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02 September 2013, 20:36
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#7
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Member
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,875
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I heard an air cooled Honda when I was down on the helford this eve. It was coming out of the Fal 5m away. :-/
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02 September 2013, 20:41
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#8
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Member
Country: UK - England
Town: Sussex
Make: RIBTEC 655
Length: 6m +
Engine: Yam 150
Join Date: Oct 2007
Posts: 1,160
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The air cooled hondas are very noisy, I changed mine for a little Mercury two stroke that was silent in comparison. Going a bit bigger to 6 & 8 hp, the Yamaha 2 strokes are also much quieter than the equivalent Mercury 4 strokes.
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02 September 2013, 21:54
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#9
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Member
Country: UK - England
Town: St Helens
Boat name: Wine Down
Make: Maxum
Length: 8m +
Engine: Inboard
Join Date: Apr 2012
Posts: 934
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Quote:
Originally Posted by Boats&Outboards
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Spot on. We experimented with different outboards on my dads sailing boats. Quietest single cylinder 5hp was Yamaha 2 stroke, he bought a 5hp Honda to replace it and it was significantly noisier.
However the 2 cylinder, 6hp+ 4 strokes are really nice and quiet (All major brands)
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02 September 2013, 22:06
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#10
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Administrator
Country: UK - England
Town: Brighton
Length: 3m +
Join Date: May 2000
Posts: 7,109
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Is there such a beast a a two cylinder 6hp outboard? A quick look at the specs for the main manufacturers shows everything below 8hp as singles.
Is a 4 stroke single much quieter than the equivalent 2 stroke?
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02 September 2013, 22:13
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#11
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Member
Country: UK - England
Town: Plymouth
Length: 6m +
Join Date: Mar 2011
Posts: 2,693
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Quote:
Originally Posted by John Kennett
Is there such a beast a a two cylinder 6hp outboard? A quick look at the specs for the main manufacturers shows everything below 8hp as singles.
Is a 4 stroke single much quieter than the equivalent 2 stroke?
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The older 4 strokes were twins, as were the 2 strokes. Not sure on the latest models.
www.BoatsandOutboards4Sale.co.uk
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02 September 2013, 22:43
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#12
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Member
Country: UK - Channel Islands
Town: Jersey
Boat name: Archangel
Make: Ribcraft
Length: 6m +
Engine: ETec 225
MMSI: 235063789
Join Date: Sep 2008
Posts: 1,005
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Quote:
Originally Posted by Downhilldai
The air cooled Hondas I've heard made a right racket.
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Mine's really quiet; it won't start!
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02 September 2013, 22:54
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#13
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RIBnet admin team
Country: UK - England
Town: The wilds of Wiltshire
Boat name: Dominator
Make: SR5.4
Length: 7m +
Engine: Yam 85
MMSI: 235055163
Join Date: Jul 2005
Posts: 13,069
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Quote:
Originally Posted by GJ0KYZ
Mine's really quiet; it won't start!
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I told you not to try and use it as an auxiliary on the jetski....
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03 September 2013, 00:11
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#14
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Member
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,299
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Quote:
Originally Posted by John Kennett
Is there such a beast a a two cylinder 6hp outboard? A quick look at the specs for the main manufacturers shows everything below 8hp as singles.
Is a 4 stroke single much quieter than the equivalent 2 stroke?
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Assume you're looking at 4-strokes?
If, on the other hand, you're looking at older 2-strokes, the Soozook DT6 is a nice 2-cyl motor - smooth & relatively quiet.
Got one here if you're interested - 1986 longshaft.
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03 September 2013, 07:09
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#15
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Member
Country: UK - Channel Islands
Town: Jersey
Boat name: Archangel
Make: Ribcraft
Length: 6m +
Engine: ETec 225
MMSI: 235063789
Join Date: Sep 2008
Posts: 1,005
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Quote:
Originally Posted by Nos4r2
I told you not to try and use it as an auxiliary on the jetski....
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Ha ha! Actually it's been chewed to death by my rats over the years. They've eaten the throttle cable, twist grip, choke lever, most of the propeller and even some of the cowling. Bloody swines they are..!!
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03 September 2013, 09:38
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#16
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Member
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,671
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Johnsorude used to do a lightweight 4Hp twin..... (something like 13Kg fueled?) Thin as well, so fits in small gaps.
I am looking at sticking a load of soundproofing round the inside of the cowl, if that helps to put the noise into perspective!
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03 September 2013, 10:16
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#17
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Member
Country: UK - England
Town: Southampton
Boat name: SMH Rib / War Shot
Make: Ribtec / Scorpion
Length: 4m +
Engine: 100hp Yam/150hp opt
Join Date: Sep 2003
Posts: 2,069
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Quote:
Originally Posted by 9D280
Johnsorude used to do a lightweight 4Hp twin..... (something like 13Kg fueled?) Thin as well, so fits in small gaps.
I am looking at sticking a load of soundproofing round the inside of the cowl, if that helps to put the noise into perspective!
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They were always noisy.
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03 September 2013, 10:18
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#18
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Member
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,875
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Quote:
Originally Posted by GJ0KYZ
Mine's really quiet; it won't start!
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Good on fuel then? ;-)
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03 September 2013, 10:30
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#19
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Member
Country: UK - Scotland
Town: Glasgow
Length: no boat
Join Date: Jul 2008
Posts: 330
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Hi John, I thought you had mentioned a while ago that you were going down the electric outboard route. I take it that this did work out the way you wanted?
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03 September 2013, 10:37
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#20
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Member
Country: UK - England
Town: wolverhampton
Boat name: bluefin
Make: picton
Length: 4m +
Engine: outboard
Join Date: Nov 2011
Posts: 137
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Hi John, the tohatsu built 2.5/3.5 4 strokes are lovely built engines and quiet too. These are Mercury, mariner and Tohatsu. Yamahas also are just as good in my opinion. Hondas are exteremely popular due to centrifugal clutches and being air cooled but are noisier than the aforementioned engines
Regards Steve
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