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11 July 2022, 09:15
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#61
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Member
Country: UK - England
Town: Up North and right a bit
Make: XS500/Merc340/Bic245
Length: 5m +
Engine: Mar 60/20/3.5/Hon2.3
Join Date: Sep 2013
Posts: 1,130
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For info the manufacturers claimed weights for the current crop of 15/20hp motors;
Tohatsu 43kg
Suzuki 44kg
Honda 46kg
Mercury/Mariner 47kg
Yamaha 51kg
All weights lightest in range….short shaft manual start on tiller.
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11 July 2022, 09:23
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#62
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RIBnet admin team
Country: UK - England
Town: Cambridgeshire
Boat name: Nimrod II
Make: Aerotec 380
Length: 3m +
Engine: Yam 15 Tohatsu 9.8
Join Date: Nov 2007
Posts: 8,994
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Unless you have a disability related to arm strength elec start on this size of OB is a waste of money and added weight/complication you really don’t need.
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11 July 2022, 09:32
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#63
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Member
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 12,178
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Quote:
Originally Posted by Fenlander
Unless you have a disability related to arm strength elec start on this size of OB is a waste of money and added weight/complication you really don’t need.
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^^^^^^wot he said[emoji106]^^^^^
__________________
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4: Don't feed the troll
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11 July 2022, 10:01
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#64
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RIBnet admin team
Country: UK - England
Town: Cambridgeshire
Boat name: Nimrod II
Make: Aerotec 380
Length: 3m +
Engine: Yam 15 Tohatsu 9.8
Join Date: Nov 2007
Posts: 8,994
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Having said elec start is usually not needed on portable outboards (up to 20hp) there is no doubt the 10hp and below motors are much lighter to pull over if that is a factor.
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11 July 2022, 11:04
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#65
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Member
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 12,178
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Quote:
Originally Posted by Fenlander
Having said elec start is usually not needed on portable outboards (up to 20hp) there is no doubt the 10hp and below motors are much lighter to pull over if that is a factor.
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My 8.5 stone missus can start our DF20 easy enough. That said, she can also swing an axe & has a mean right hook🥴
__________________
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4: Don't feed the troll
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11 July 2022, 11:50
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#66
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RIBnet admin team
Country: UK - England
Town: Cambridgeshire
Boat name: Nimrod II
Make: Aerotec 380
Length: 3m +
Engine: Yam 15 Tohatsu 9.8
Join Date: Nov 2007
Posts: 8,994
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I'm not saying the DF20 or any other 15/20 are hard to pull over but the Mercury/Mariner/Tohatsu 9.8 4-stroke models are super easy in comparison... I perhaps notice more being an oldie?
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11 July 2022, 12:15
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#67
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Member
Country: UK - England
Town: Leicester
Make: Yam
Length: 3m +
Join Date: May 2019
Posts: 299
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I had the 51kg Yamaha 4 stroke on a 3.1m ally floor sib, it was too heavy to the extent that it was hard to plane, just a lot of bow lift. I swapped for a 2 stroke and its made a huge difference.
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11 July 2022, 14:38
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#68
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Member
Country: UK - England
Town: Chester Le Street
Make: Highfield CL 380
Length: 3m +
Engine: Tohatsu 20HP EFI 4-S
Join Date: Jun 2022
Posts: 89
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Thank you.
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11 July 2022, 14:40
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#69
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Member
Country: UK - England
Town: Chester Le Street
Make: Highfield CL 380
Length: 3m +
Engine: Tohatsu 20HP EFI 4-S
Join Date: Jun 2022
Posts: 89
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That sounds good, thanks
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11 July 2022, 14:45
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#70
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Member
Country: UK - England
Town: Chester Le Street
Make: Highfield CL 380
Length: 3m +
Engine: Tohatsu 20HP EFI 4-S
Join Date: Jun 2022
Posts: 89
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That sounds right
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11 July 2022, 16:15
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#71
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Member
Country: UK - England
Town: Up North and right a bit
Make: XS500/Merc340/Bic245
Length: 5m +
Engine: Mar 60/20/3.5/Hon2.3
Join Date: Sep 2013
Posts: 1,130
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Quote:
Originally Posted by Fenlander
I'm not saying the DF20 or any other 15/20 are hard to pull over but
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Our current Mariner 20 efi requires a concerted long hard pull (Oooer missus) to start hot or cold. Reckon it’s down to generating enough juice to fire up the battery less efi system.
By comparison our previous Suzuki 20, same battery less efi system was a doddle to start, hot or cold, with even a half hearted pull.
Any other Merc/Mariner/Tohatsu 15/20 efi owners find this??
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11 July 2022, 18:38
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#72
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Member
Country: UK - England
Boat name: Redneck
Make: Excel
Length: 3m +
Engine: 20 efi & 9.8 2s
Join Date: Jul 2020
Posts: 3,495
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Quote:
Originally Posted by chipko
Our current Mariner 20 efi requires a concerted long hard pull (Oooer missus) to start hot or cold. Reckon it’s down to generating enough juice to fire up the battery less efi system.
By comparison our previous Suzuki 20, same battery less efi system was a doddle to start, hot or cold, with even a half hearted pull.
Any other Merc/Mariner/Tohatsu 15/20 efi owners find this??
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Sane here chipko, 15 Merc EFI, 4 good pulls cold & 3 pulls hot..
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11 July 2022, 18:43
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#73
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Member
Country: UK - England
Boat name: Redneck
Make: Excel
Length: 3m +
Engine: 20 efi & 9.8 2s
Join Date: Jul 2020
Posts: 3,495
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Quote:
Originally Posted by chipko
For info the manufacturers claimed weights for the current crop of 15/20hp motors;
Tohatsu 43kg
Suzuki 44kg
Honda 46kg
Mercury/Mariner 47kg
Yamaha 51kg
All weights lightest in range….short shaft manual start on tiller.
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I wonder what mercury do to add an extre 4kg to the tohatsu engine?
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11 July 2022, 18:45
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#74
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RIBnet admin team
Country: UK - England
Town: Cambridgeshire
Boat name: Nimrod II
Make: Aerotec 380
Length: 3m +
Engine: Yam 15 Tohatsu 9.8
Join Date: Nov 2007
Posts: 8,994
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Is it the gear on tiller and different tilt arrangement... or are they the same in those respects??
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11 July 2022, 18:47
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#75
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Member
Country: UK - England
Town: Chester Le Street
Make: Highfield CL 380
Length: 3m +
Engine: Tohatsu 20HP EFI 4-S
Join Date: Jun 2022
Posts: 89
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It's strange
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11 July 2022, 19:17
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#76
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Member
Country: UK - England
Town: Up North and right a bit
Make: XS500/Merc340/Bic245
Length: 5m +
Engine: Mar 60/20/3.5/Hon2.3
Join Date: Sep 2013
Posts: 1,130
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Quote:
Originally Posted by Steve509926
Sane here chipko, 15 Merc EFI, 4 good pulls cold & 3 pulls hot..
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Annoying isn’t it.
Re weight differences. Merc/Mariner same as Tohatsu apart from the big tiller and hood. Reckon most of the extra weight must be in the big tiller. In it’s defence super nice to use as extra long, tiller mounted gear selector, vibration damping, fully adjustable in both height and rake for left or right hand use including throttle rotation reversal.
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11 July 2022, 19:23
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#77
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Member
Country: UK - England
Town: Chester Le Street
Make: Highfield CL 380
Length: 3m +
Engine: Tohatsu 20HP EFI 4-S
Join Date: Jun 2022
Posts: 89
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I see. Little bits of technology uping the weight
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11 July 2022, 19:44
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#78
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Member
Country: UK - England
Boat name: Redneck
Make: Excel
Length: 3m +
Engine: 20 efi & 9.8 2s
Join Date: Jul 2020
Posts: 3,495
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Not sure about the tilt arrangement, the obvious difference is the tiler gear change. Even so 4 kg is a lot for what is practically the same OB.
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13 July 2022, 10:31
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#79
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Member
Country: Australia
Join Date: Jul 2022
Posts: 2
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Gemini 505 outboard
Hi guys I need some help please l, I bought my first rib boat Gemini 505, and it comes without engine, I want to buy one for it, but I’m a little confuse about the HP and if is better to buy 4 strokes or 2 strokes, I want use to fishing offshore around 6nm up to 15nm offshore, anyone can recommend a good outboard for it? Really appreciate thanks
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13 July 2022, 19:55
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#80
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Member
Country: UK - England
Town: N. Devon
Boat name: (Not Another) Nutkin
Make: Highfield
Length: 6m +
Engine: Outboard, Honda 135
MMSI: 232036183
Join Date: Dec 2008
Posts: 2,047
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Hi - outboards are like your favorite ice cream, loved by some, hated by others! To be honest, most of the main stream units will be fine, I prefer a Suzuki, but run a Honda at present.
There should be a plate on the boat, telling you the max size, probably some where between 65 and 90 hp I'd have though.
2 Vs 4 stroke, one is quieter, better on fuel but heavier, the other is easier to work on, can be more powerful for the weight but noisier and smelly when sat still. I'd not go back to a 2 stroke, but i was with 20 boats the weekend and not a 4 stroke between them - but they were using it for racing, not fishing and sitting still.
You're not the only one down there with the same boat - a conversation direct would be a good start - https://www.rib.net/forum/f8/gemini-...0-a-44582.html
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