Comparing with the pics on your site, I’d say this is the 25 hp head. Agreed? There is a little scoring of the bore. (Sorry pic out of focus). Think I can run it without a teardown?
So, ’69 being the first year for 25s, I feel this is a ’69 or later. It appears from looking on shop.evinrude that ’72 was the last year for the traditional magneto, at least on the 25s. So I’m thinking 69, 70, 71, or 72. Any way to pin it down closer?
am