1974 Johnson 40 HP Outboard Motors Service Repair manual P/N JM-7407, Page 63Get this manual

1974 Johnson 40 HP Outboard Motors Service Repair manual P/N JM-7407, Page 63

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driveshaft pinion gear rotates constantly with the operation of the motor and drives two bevel gears which revolve freely on the propeller shaftThe clutch shifter dog is splined to the propeller shaft