"Barry, you have a bit of an o
"Barry, you have a bit of an odd one there. The 582 prefix tells me that it was built by Clinton, however, it should have also been built for export to Sears in Canada.
Clintons only contribution to the Sears line was the 3.5 horse models and they all went to Simpsons Sears, the Canadian version of Sears and Roebuck. Clinton was a major producer for Montgomery Wards, one of Sears major competitors.
They were produced between 1965-68 at a time when Clinton was hovering on bankruptcy and was being funded by a company called Lomart.
At that time McCulloch (best known for chainsaws) was making the US models for Sears. So you have a bit of an "unusual" one.
Anyhow, it should mix at 32:1 (1/4 pint of oil to 1 gallon - in US measurements) - use normal 2 cycle motor oil such as used with lawnmowers, NOT marine oil which is designed for water-cooled motors. This will be an air-cooled model and needs the protection of the heavier oil.
You could try www.discount-marine-parts.com for a manual - if anyone has one, it may be them...."
A "professional" is someone who gets paid for their work - it doesn't necessarily mean they are good at it :)