Go Back   RIBnet Forums > RIB talk > Inflatable boats - SIBs and folding RIBs
Click Here to Login

Reply
 
Thread Tools Search this Thread
 
Old 27 October 2023, 18:52   #101
RIBnet admin team
 
Fenlander's Avatar
 
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: 8,907
On my scales which I believe to be accurate or at least near enough the Yam 15 2T weighs 37kg and the Tohatsu 9.8 2T 27kg. In any case the 10kg difference remains.
__________________
Fenlander is offline   Reply With Quote
Old 27 October 2023, 20:16   #102
Member
 
Country: UK - England
Boat name: Redneck
Make: Excel
Length: 3m +
Engine: 20 efi & 9.8 2s
Join Date: Jul 2020
Posts: 3,442
Quote:
Originally Posted by Easedalenovice View Post
Mine is 36kg and is ok to lift. 10 kg more than my Tohatsu 9.8 s

Quote:
Originally Posted by Fenlander View Post
On my scales which I believe to be accurate or at least near enough the Yam 15 2T weighs 37kg and the Tohatsu 9.8 2T 27kg. In any case the 10kg difference remains.
That's good to know as I feel that one day (maybe not as far off as I'd like to think! ) I'll have to make things a bit lighter.
__________________
Steve509926 is offline   Reply With Quote
Old 27 October 2023, 22:41   #103
RIBnet admin team
 
Fenlander's Avatar
 
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: 8,907
Just checked my scales against a known weight and they are spot on. So perhaps all these two strokes are a little over the weights we often state for them.
__________________
Fenlander is offline   Reply With Quote
Old 28 October 2023, 06:34   #104
Member
 
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,096
My take is this

27 kg = Tohatsu 9.8 2 stroke or 6 hp 4 stroke both quite easy to lift, carry and put on. 9.8 will plane 2 up and some stuff and will give ok performance at about 12 knots

37 kg = 15 hp 2 stroke heavy but with care can carry and lift and put on but can be a slight struggle. Excellent performance an potentially 18-20 knots

Anything over about 42 kg which I think is all 15 or greater 4 strokes can be done but you have to have a system, be young and strong and be very careful and use aids or other help. In my view this weight and over is an injury waiting to happen and not advisable. This weight and type of 4 stroke also generally has transport issues
__________________
smallribber is offline   Reply With Quote
Old 28 October 2023, 08:30   #105
Member
 
Country: UK - England
Town: Kent
Boat name: ever dry
Make: Elling KB350
Length: 3m +
Engine: Yamaha 15hp 2 stroke
Join Date: Jun 2020
Posts: 626
I still don't understand why this Russian system for near effortless positioning on and off the transom and transportation of the outboard isn't popular over here, at least for those outboards with steering tubes like the Yamaha 15hp.






My thanks to those who commented on my ongoing problems, still waiting for biopsy results. Trying hard here to not side track the thread
__________________
Oldman2 is offline   Reply With Quote
Old 28 October 2023, 10:42   #106
RIBnet admin team
 
Fenlander's Avatar
 
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: 8,907
It is a clever system and would suit some. For our use and the way we use the car it's too inflexible though as we don't fold the car seats but put the outboard in crossways or even in the rear seat footwell. Hence the need to free lift anything we have.
__________________
Fenlander is offline   Reply With Quote
Old 28 October 2023, 10:53   #107
Member
 
Country: UK - England
Town: Kent
Boat name: ever dry
Make: Elling KB350
Length: 3m +
Engine: Yamaha 15hp 2 stroke
Join Date: Jun 2020
Posts: 626
It would suit you if you were to change your habit and fold down a rear seat perhaps when 37kilo gets just too much you might revisit David
__________________
Oldman2 is offline   Reply With Quote
Old 28 October 2023, 11:24   #108
Member
 
Country: UK - England
Boat name: Redneck
Make: Excel
Length: 3m +
Engine: 20 efi & 9.8 2s
Join Date: Jul 2020
Posts: 3,442
Are you hoping to get out with your new to you Yam soon David? Sea or river?
__________________
Steve509926 is offline   Reply With Quote
Old 28 October 2023, 11:27   #109
RIBnet admin team
 
Fenlander's Avatar
 
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: 8,907
Hopefully getting out but sure to be the river, just to see how it runs for a couple of hours. Suitable weather days are harder to come by now though.
__________________
Fenlander is offline   Reply With Quote
Old 28 October 2023, 11:29   #110
Member
 
Country: UK - England
Boat name: Redneck
Make: Excel
Length: 3m +
Engine: 20 efi & 9.8 2s
Join Date: Jul 2020
Posts: 3,442
Quote:
Originally Posted by Fenlander View Post
Hopefully getting out but sure to be the river, just to see how it runs for a couple of hours. Suitable weather days are harder to come by now though.
And it's a shorter distance to row
__________________
Steve509926 is offline   Reply With Quote
Old 28 October 2023, 11:35   #111
RIBnet admin team
 
Fenlander's Avatar
 
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: 8,907
Hmm yes perhaps we should make the outward run against the river flow so in case of failure we can let the current do the work on the way back.
__________________
Fenlander is offline   Reply With Quote
Old 28 October 2023, 11:44   #112
Member
 
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,096
It’s a yam do they fail
__________________
smallribber is offline   Reply With Quote
Old 28 October 2023, 12:30   #113
RIBnet admin team
 
Fenlander's Avatar
 
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: 8,907
Well the rednecks of America reckon the Johnsons never fail but...
__________________
Fenlander is offline   Reply With Quote
Old 28 October 2023, 15:40   #114
Member
 
Country: UK - England
Town: Devon
Make: Zodiac Cadet 340
Length: 3m +
Engine: Yamaha 25hp 2t
Join Date: Apr 2021
Posts: 69
RIBase
Quote:
Originally Posted by Fenlander View Post
Yes the Yamaha 15 2t always seem to have this socket unlike other makes where it is a rarely seen extra. You will know this and like others may have already sorted something but the output is not properly regulated and only intended for lighting unless further electronics are added. For simplicity all our devices have their own batteries now so we don’t use a 12v aux battery any more.

Not saying an experienced guy like you David, but have you checked under the hood for the regulator? My 25hp has the AC output socket but under the hood is the 12v DC lead tucked in a loose rubber bung.
Pic shows regulator fitted to right of carb, red lead below is 12v DC. Sometimes it's mounted under the ignitors and cdi.

Hopefully it's fitted for you as it's useful.
Rob
Attached Thumbnails
Click image for larger version

Name:	regulator.jpg
Views:	65
Size:	124.9 KB
ID:	144097  
__________________
trevbouy is offline   Reply With Quote
Old 28 October 2023, 16:41   #115
Member
 
Country: UK - England
Town: Sussex
Boat name: Bombard
Make: Aerotec 380
Length: 3m +
Engine: Mercury Mariner 15hp
Join Date: Jul 2010
Posts: 3,491
Quote:
Originally Posted by Easedalenovice View Post
It’s a yam do they fail
Yes. IME!
__________________
Max... is offline   Reply With Quote
Old 28 October 2023, 18:10   #116
RIBnet admin team
 
Fenlander's Avatar
 
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: 8,907
It's odd as I have just that same finned device and from what I've seen so has every other Yamaha 15 2T. Despite the handbook showing the finned thing in illustrations it clearly states this is for an AC outlet for lighting and only for a 40-80w load.

But if anyone has found this is a regulated 12v outlet then that's even better.

For me though as I said above I no longer want to carry a 12v battery system.
__________________
Fenlander is offline   Reply With Quote
Old 28 October 2023, 18:44   #117
RIBnet admin team
 
Fenlander's Avatar
 
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: 8,907
In post 83 I mentioned I'd bought one of the budget generic outboard stand/trolleys but it was taller than my existing similar one and every few inches more I have to lift the outboard when vertical is difficult so time to mod.

I'd already made up a larger thicker faux transom when it first arrived as it came with an undersized rubbish bit of timber full of splits. In order to drop the timber a worthwhile amount I had to lower the pivot/crossover point of the tubes from the empty holes in the image to the new bolted through position. New holes drilled to relocate the timber then I cut off the excess from the vertical tubes as pictured. Moving the pivot point made the handles stick out a bit too far for the tight location this trolley is stored so I trimmed them back and replaced the grips.

It's made it much more useful for me with these minor changes. Love a fettle.
Attached Thumbnails
Click image for larger version

Name:	Stand pivot.jpg
Views:	51
Size:	104.5 KB
ID:	144098   Click image for larger version

Name:	Stand ht reduction.jpg
Views:	54
Size:	110.3 KB
ID:	144099   Click image for larger version

Name:	Stand handle reduction.jpg
Views:	54
Size:	276.9 KB
ID:	144100   Click image for larger version

Name:	Stand finished.jpg
Views:	60
Size:	217.5 KB
ID:	144101  
__________________
Fenlander is offline   Reply With Quote
Old 28 October 2023, 18:55   #118
Member
 
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,096
Quote:
Originally Posted by Fenlander View Post
It's odd as I have just that same finned device and from what I've seen so has every other Yamaha 15 2T. Despite the handbook showing the finned thing in illustrations it clearly states this is for an AC outlet for lighting and only for a 40-80w load.

But if anyone has found this is a regulated 12v outlet then that's even better.

For me though as I said above I no longer want to carry a 12v battery system.
All covered here


https://www.rib.net/forum/f36/yamaha...uit-85776.html
__________________
smallribber is offline   Reply With Quote
Old 29 October 2023, 08:29   #119
Member
 
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,096
Quote:
Originally Posted by Fenlander View Post
In post 83 I mentioned I'd bought one of the budget generic outboard stand/trolleys but it was taller than my existing similar one and every few inches more I have to lift the outboard when vertical is difficult so time to mod.

I'd already made up a larger thicker faux transom when it first arrived as it came with an undersized rubbish bit of timber full of splits. In order to drop the timber a worthwhile amount I had to lower the pivot/crossover point of the tubes from the empty holes in the image to the new bolted through position. New holes drilled to relocate the timber then I cut off the excess from the vertical tubes as pictured. Moving the pivot point made the handles stick out a bit too far for the tight location this trolley is stored so I trimmed them back and replaced the grips.

It's made it much more useful for me with these minor changes. Love a fettle.
I have that same stand and they are quite good but a little flimsy. The main issue I have is getting a container full of water in place to wash the engine through. You mods look very useful. It is so often small things that make big differences in use
__________________
smallribber is offline   Reply With Quote
Old 29 October 2023, 08:33   #120
Member
 
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,096
I also converted an old folding golf trolly which makes a very good transporter and folds very small

__________________
smallribber is offline   Reply With Quote
Reply

Tags
yamaha


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




All times are GMT. The time now is 05:04.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.