It has a cast aluminum cowling bolted and gasketed to be water proof. The two doors have o-rings. Inside is in good shape and everything inside and out is painted Navy gray. There is a bit of fine sand apparently from a San Diego beach. There are zero commercial markings anywhere. A very small handmade copper name plate added to the motor has the 1/8" tall numbers 487. All controls, including the throttle, have been moved inside cast aluminum housing except the shift. It has two cylinders, weighs 80lbs and has an 8" two bladed prop. The bottom half and internal controls look similar to a 1954-ish Evinrude. A leather wrist holder is tied to a clip that when pulled shuts off the air intake to the motor. There is a commercial type pressurized fuel tank designed for motors without a fuel pump painted Navy gray. The commercial throttle was in the tiller handle. The original throttle grip looks like it was removed on purpose. It appears the choke knob linkage has been modified for another purpose, possible a throttle. The front and rear doors have o-rings. Cast cowling has water tight gasket to motor. Modified internal parts are often in stainless steel. Looks like valves have been built into the exhaust ports but I could be wrong on this (see last pic).
twin cylinder, left side shows air intake that is shut off when wrist stap is pulled.
Not sure what these are but they look like valves.
what do their boats use these days?