Re: 35 hp Viking
354621 is a Chrysler built 1966 35hp. I have some additional information as well, courtesy of Jeff Hankinson:<br /><br /><br />Horsepower 35 brake HP at 4750 RPM<br />Engine two cycle two cylinder, alternate firing<br />Electric and Manual start, negative ground Magneto ignition system<br />Bore and stroke 3 x 2.540<br />Displacement 35.9 Cu. In.<br />Carburetor Float feed<br />Connecting rod Forged Nickel Steel Caged roller bearings at crankshaft. Cased needle bearings at piston pin<br />Crankshaft Forged Nickel Steel. Ball bearings at upper Main. Caged rollers at Centre and Lower Main bearings.<br />Propeller Aluminum alloy 10 3/8 Dia. X 11 1/2 pitch, Right hand rotation<br />Cooling Water cooled Thermostatically controlled - positive displacement type water pump<br />Transom height 15 or 20<br />Weight 116 Lbs. for standard shaft model.<br />Fuel mixture 48:1 1 pint SAE 30 outboard engine oil to 6 gallons of regular gas 85 octane<br /> Avoid Premium gasolines with 95 octane and antiknock additives<br />Recommended Operating range 4400 5100 RPM If heavy duty applications then mixture 24:1<br /><br />Obviously you would use TC-W3 rated outboard oil today instead of "SAE 30 outboard oil". I find 20ml of oil per litre of gas more convinent than working it out in gallons.