1972 Johnson 4HP Outboard Motor Service Manual, Page 33Get this manual
DO NOT permit solvent used to clean tapers to wash out of wickfReplace flywheelCheck for spark each cylinder connecting the spark plug high tension leads to spark checker (8tevens Experimental Part #8-21 8-13), and cranking the engineTighten flywheel nut to torque specified in 8ection 2
gConnect the high tension lead wires to the spark plugsMake sure that the spring clips in the spark plug lead covers make firm contact with the spark plug terminalsFigure 4-19Connections for Checking hAttach high tension lead anchor
NOTE avoid water pump impeHer damage rotate the crankshaft in clockwise direction onlyPlace timing fixture (Special #383603) cral1kshaftRotate the crankshaft so that the side of the fixture marked (top) is aligned with the first projection the armature plateFigure 4-20