Johnson Evinrude Outboard Motors 1956-1970 1.5-40hp repair manual., Page 170Get this manual
IGNITION bracket and does not moveThe other point is attached to movable mountA spring is used to keep the points in contact with each other, except when they are separated by the action of cam built into the flywheel or machined on the crankshaftBoth points are constructed with steel base and tungsten cap fused to the baseTo properly diagnose magneto (spark) problems, the theory of electricity flow must be understoodThe flow of electr ici ty through wire may be compared with the flow of water through pipeConsider the voltage in the wire as the water pressure in the pipe and the amperes as the volume of waterNow, if the water pipe is broken, the water does not reach the end of the pipeIn similar manner if the wire is broken the flow of electricity is brokenIf the pipe springs leak, the amount of water reaching the end of the pipe is reducedSame with the wireIf the installation is defective or the wire becomes grounded, the amount of electricity (amperes) reaching the end of the wire is reducedCheck the wiring carefully, inspect the points closely and adjust them accuratelyThe point setting for ALL engines covered in this manual is 0.020"An added item of useful information simplifying purchase of new points is that ALL point sets for the engines covered in this manual have the same part number, 58014-8