That appears to be a Scott-Atwater (or Firestone branded Scott) 3.6 hp motor from late 40’s or early 50’s. The tank and starter are not original. And because the tank is not original, the correct cowling is missing. It does not swing around 180 degrees for reverse, only enough to steer right or left. These are very dependable motors but they have a few things that should be checked. The water pump rotor is susceptible to swelling if it’s contaminated with grease, or hardening with age. Parts are available. Also, if the ignition gives you trouble, the first thing to check is the WICO condenser. I’m not sure whether the lower unit uses grease or oil, perhaps someone will chime in with that info. Also, the factory recommended fuel to oil ratio is 24:1.
T
