Your Champion model B1F was built by Scott Atwater in 1940. it was a 3.2 horse power single with a bore of 2-1/8" and a stroke of 1-¾". The power was rated @ 3,900 RPM, The three bladed aluminum propeller had a diameter of 7-½" and pitch of 6-½". The breaker point gap was .015" and the Champion D16 sparkplug (now 516) was gapped at .025". The fuel tank holds 6 pints and the factory recomended a mix of ¾ of a pint of SAE 30 wt. non-detergent oil with each gallon of unleaded gasoline. The lower unit (gear case) is lubricated with John Deere Corn Head Grease. The outboard is water cooled and weighs 33 pounds. It sold for $52.95 in 1940.
