fuel mixture on 1951 sea king 5 hp

[boating thad]

fuel mixture on 1951 sea king 5 hp

can you run the engiene at any thing thiner than 14to1
thanks thad

 

[tmcalavy]

Re: fuel mixture on 1951 sea king 5 hp

Re: fuel mixture on 1951 sea king 5 hp

The correct recommended fuel mix ratio is 16:1, but that was made in 1951 when SAE 30 auto oil was used. With today's TCW-3 marine oil, you can probably lean it out to about 24:1 and not hurt anything. Running the original recommended 16:1 mix would be better though, using modern TCW-3.

 

[steelespike]

Re: fuel mixture on 1951 sea king 5 hp

Re: fuel mixture on 1951 sea king 5 hp

Oil is the life blood of your motor don't mess with it.
Mix should be 16:1.You could go to The Antique Outboard Motor Club at www.aomci.org and ask
someone that really knows the old motors.

 

[tmcalavy]

Re: fuel mixture on 1951 sea king 5 hp

Re: fuel mixture on 1951 sea king 5 hp

Thanks for adding what I forgot to add, aomci link, to my post Steel. I'd stick to 16:1 using modern TCW-3 oil. 24:1 would work, too, but 16:1 would be better for the bushings on that vintage outboard.

 

[JB]

Re: fuel mixture on 1951 sea king 5 hp

Re: fuel mixture on 1951 sea king 5 hp

Check the model number to confirm that you have an engine built by Gale. If the model number begins with GG it was made by Gale, a division of OMC, and is nearly identical to the JohnnyRudes of the period.

In 1964, OMC changed the mix recommendation for all OMC built engines before that date to 24:1, using NMMA Certified TC-W oil (NOT SAE-30W).

Based on that, if yours really is a Gale engine, you should be able to use 24:1 with no worries.