Evinrude 75HP Year and Oil question

[toberlindacher]

I was wondering if someone could tell me the year and oil mixture ratio for the following evinrude outboard.

Model: 50927
Serial: 03643

oil ratio?

Much appreciated. New to the boating world and bought this oldie. Thanks.

Torin

 

[kenmyfam]

Re: Evinrude 75HP Year and Oil question

Well I think it's a 1961 model.
I think I know the oil mix but I will not commit to it. Someone will though.

Welcome to iboats

 

[tx1961whaler]

Re: Evinrude 75HP Year and Oil question

Q - What is the fuel/oil mix for my motor?
A - The following is generally true: 1958 and prior used 20:1, 1959 thru 1963 used 24:1, 1964 and newer use 50:1. High performance usage (racing) requires a ratio of 25:1. New engine break-in (not DI) requires 25:1.

 

[toberlindacher]

Re: Evinrude 75HP Year and Oil question

Thanks a bunch. So it looks to be 1961 and a 24:1 mixture. Any suggestions on brand of oil? I appreciate your speedy responses and help.

Torin

 

[tx1961whaler]

Re: Evinrude 75HP Year and Oil question

I've used the stuff from Wal-mart for years.
A full synthetic oil will make less smoke, but costs more.

 

[kenmyfam]

Re: Evinrude 75HP Year and Oil question

Any TCW-3 rated 2 stroke oil will be fine.