Bought two motors, but can not find information on them. One is a Evinrude lighttwin model 3302S S/N B7384. Its what I call a turnaround motor (no gear shift) Its in excellant condition. The other is a Johnson 4hp model 4W71D S/N E3358778 also excellant condition. Any information or help or opinions would be welcomed. What year, oil mix,lower unit oil, spark plug, a guess on value. Thanks