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 11 
 on: May 16, 2019, 10:11:06 AM 
Started by TheJollyBodger - Last post by TheJollyBodger
This is it as of now all sanded down (the first 2 pictures) , I have just bought the marine 2 pack primer and paint. Im painting it as2700 rich blue, and I am getting ready to prime it.
Greg

 12 
 on: May 15, 2019, 10:19:52 PM 
Started by senojn - Last post by TheJollyBodger
According to saving old seagulls (S.o.S) you are perfectly fine with 25:1 (i keep it at 20:1 to keep it on the safer side) thats because the oil technology today is way better than it was when the seagull outboard motor was designed in the 30's. Same deal with my 1962 evinrude fastwin, that originally ran on 16:1 I run that on 25:1. nowadays the standard is 40:1-50:1 with needle roller bearings, and i wouldn't push them past 50:1 unless you want scored cylinders and a worn out motor.

You could have carbon buildup that is causing the improper combustion, try spraying with a spray bottle a fine mist of water metho mix into the carbys whilst they are running at mid rpm until it starts to want to die, then let it build back up again and repeat ~5 times.

 13 
 on: May 15, 2019, 07:26:55 PM 
Started by senojn - Last post by senojn
Thank you JB
I have twin motors so that probably takes out spark and thermostat .
Stale fuel is probably correct but it is interesting that your run the Seagull on half the oil .
That's what prompted my question .
Is there a risk ?

Neil

 14 
 on: May 15, 2019, 10:33:06 AM 
Started by senojn - Last post by TheJollyBodger
just sayin' my British seagull is 10:1... i run it on 20:1. and it doesn't smoke that much. if you have ever witnessed someone put diesel in a petrol car, you will notice how much they will smoke, thats the unburnt fuel thats making the smoke. So the chances are is that you have got a weak spark in 1 cylinder, your fuel is stale, or your thermostat has had it and the motor is not getting up to operating temp, so it doesn't burn the oil in the fuel properly.

 15 
 on: May 13, 2019, 05:56:29 PM 
Started by senojn - Last post by senojn
Thanks Guy

I use 95 with everything. .

No doubt I lose track of time (fresh/freshish ) and half filling a large tank plus almost 74 Grin
Will try a smaller quantity of high octane with oil I purchased abt 20 years ago at Sussex .
It's actually a few million years older than me  Wink

Not being mechanical I didn't know the connection between rings and smoke as my many putt putt 2 strokes had two rings Shocked

I shall wait for a windy day -hope you can make it  Smiley

Do trust your new circumstances are still going well .

Cheers

Neil

 16 
 on: May 13, 2019, 05:12:58 PM 
Started by senojn - Last post by MERCMAN
Hi mate,
Yes, your motors will probably be happy at 100:1 when idling. There are some models of Yamaha outboards that will run all day with 100:1 at WOT!

But, why risk it? Stay with 50:1 please.
The excessive smoke is probably attributed to old fuel (having low octane) not able to properly burn oil and fuel, when mixed together.

This issue won't be wear related, I promise you. Your twins are 2 stroke as you well know.. 2 strokes are quite different to 4 strokes in so many ways.. 2 strokes don't have proper oil rings on the pistons like a 4 stroke, only a ring for compression (sometimes they may have two rings).

MERCMAN. 


 17 
 on: May 13, 2019, 12:42:02 PM 
Started by senojn - Last post by senojn
Hi all ,glad to see there are some new posters !

With SX 2 not running on the water I regularly start her two 1981 70 hp Johnsons in drums of recycling water.
Not opening her up ,  there is quite a lot of smoke in a limited area . I think the smoke is from lack of burning not wear . Wink
I recall someone suggesting that an idling motor could possibly run safely without oil in the mix ?
Any ideas as to a higher ratio (now 50:1 ) would go to idle and fast idle running.

Cheers
Neil

 18 
 on: May 10, 2019, 07:37:08 PM 
Started by TheJollyBodger - Last post by TheJollyBodger
Im in the Sunshine Coast more specifically Peregian Beach, near Noosa

 19 
 on: May 10, 2019, 06:35:10 PM 
Started by TheJollyBodger - Last post by Chair
Congratulations Greg. Welcome. Itís great to see the younger set getting involved with our collective obsession
Keep us informed of your progress and a few more pics would be good. Where are you situated?
Chair (David)

 20 
 on: May 10, 2019, 05:29:04 PM 
Started by TheJollyBodger - Last post by TheJollyBodger
hi im Greg
This is my 12ft 1962 Caribbean Sea Nymph that I bought in January for $900 as a a project boat. It is my first 'proper' boat as I just turned 16 in December so I could finally get a boat licence and upgrade from my 10ft punt with a British Seagull outboard. The floor and transom were completely rotten so I spent the rest of my summer holidays tearing the old floor and transom out of the boat and replaced it with some new 'composite' stuff so it will never rot again! I am mid way through the restoration with the floor and transom replaced. i took it out for the first time a couple of weeks back, and it was a lot of fun, but I decided to upgrade from the original 1962 Evinrude Fastwin, as it wasn't fast enough. I have put in its place a 1977 Johnson 35hp 'big twin' and I can tell you that she flys! I have plans for having the seats redone, all the shiny bits re-chromed the steering wheel restored and to repaint it. I have contacted Caribbean and they helped me with identifying the boat, apparently they only had one photo of one from an old advert and that the sea nymphs are extremely rare. and i have been unable to find any other picture of one on the internet.

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