... are a 20-hp. and W-80 model. Rounding out the line of 16 outboards in ten horsepower classes are motors rated at 3, 5, 6, 91%, 33, 40 and 60. All are covered by a two-year warranty on parts and labor and all use a 50/1 gasoline to oil ... Big Twin Electric; manual starting 40-hp. Big Twin; the 33-hp. ... The 100-hp Evinrude is manufactured only in a long shaft ... at Riverside P.S. Not. OCTOBER, 1965.