Johnson Evinrude Outboard Motors 1956-1970 1.5-40hp repair manual., Page 311Get this manual
ELECTROMATIC SHIFT Start the engine and observe the tattletale flow of water from idle relief in the exhaust housingThe water pump installation work is verifiedIf "Flushe tteis connected to the lower unit, VERY LITTLE water will be visible from the idle relief portShift the engine into the three gears and check for smoothness of operation and satisfactory performance8-8 ELECTROMATIC LOWER UNIT