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Old 03 June 2015, 12:30   #11
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Country: UK - Scotland
Town: Haddington
Make: Avon SR4
Length: 4m +
Engine: 50 Hp
Join Date: Apr 2015
Posts: 47
Zodiac pro rib, 50hp outboard | eBay

Rib Boat Rigid Inflatable 4.5 meter offshore with yamaha 75 outboard | eBay
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Old 03 June 2015, 15:25   #12
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Country: UK - Scotland
Make: Destroyer 5.5/Ring18
Length: 3m +
Engine: Yam 90HP/Yam200HP
Join Date: Jul 2009
Posts: 448
SR4 With Yamaha 3 cylinder autolube 30 hp motor

69cmw are you talking about your boat.[/QUOTE]


No, not my RIB, Just letting you know what you can get for Ģ3500 near you from a dealer.
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Old 03 June 2015, 16:34   #13
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Country: UK - England
Town: Southampton
Boat name: SMH Rib / War Shot
Make: Ribtec / Scorpion
Length: 4m +
Engine: 10hp Yam / 150hp opt
Join Date: Sep 2003
Posts: 1,894
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My SR4m has a 30hp 3-cyl Yamaha and it's perfectly adequate. The engine is in very good condition and has power trim and tilt which makes a useful difference.
Does about 26/27 knots I think.
Suffers a bit of you load the boat up with gear and people though.
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Old 03 June 2015, 18:23   #14
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Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: 2 stroke YAM 20 HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 10,114
If you decided to upgrade you might find there is a market for 30HP engines with Power trim, electric start and a good service history - if that is the case.
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Old 03 June 2015, 19:28   #15
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Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,611
Oh ffs. It's fine. I ran one with a 25 and it clocked 21 kits. I spent a week at the 19canteeen oppie nationals in one with that engine on tiller. No problem.

I have used a 5.4 with that engine and it planed.
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Old 03 June 2015, 20:48   #16
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Country: Germany
Town: near Kiel, baltic sea
Make: Avon SR4
Length: 4m +
Engine: Tohatsu 30 4-stroke
Join Date: Oct 2013
Posts: 50
My SR4 runs with a 30 HP 4 stroke Tohatsu, not underpowered i would say. Getting it on 27 knots 1 person (90 kg), and 24 knots with 2 persons. (+ 90 Kg)
With 2 persons and open flooding hull i wouldnīt like to go on nasty conditions, cause than itīs little underpowered. Alone (1 person) no problem.
A 4 blade Mercury spitfire prop 9.3 x 11 gives a much more quicker holeshot and acceleration than any 3 blade prop i figured out, even if hull is flooded with 1 person getting directly on to plane.
40 hp would be fine, 50 hp will make you a happy chine walk dancer!
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Old 09 June 2015, 11:08   #17
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Country: UK - England
Town: macclessfield
Boat name: Reach Out
Make: Quicksilver
Length: 4m +
Engine: 30hp Tohatsu EFI
Join Date: Aug 2010
Posts: 301
I have a 4.1 m rib, light one, 30 hp efi tohatsu. Does the job, trim and tilt critical with only 30 hp. 30 hp is the top power rating for my boat, but 40 hp would be much better. For fishing a battery powered outboard will do, lol.....

Did clock 31.4 knots on sale water park according to my gps with 12 inch pitch stainless prop
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