1989 Johnson Evinrude "CE" Colt/Junior thru 8 Service Manual, P/N 507753, Page 145Get this manual
it General Safety Warnings The engine cover is machinery guardUse caution when conducting tests on running enginesDo not wear jewelry or loose clothingKeep hair, hands and clothing away from rotating flywheel To prevent possible fire or explosion under the engine cover after servicing: aCheck entire fuel system for leaksbMake sure all electrical and ignition leads are routed and clamped in their original positions away from rotating engine parts which could cut or abrade wire insulation To avoid accidental starting of engine while servicing, take adequate precautions to disarm the ignition system: aConnect engine wiring harness to boat wiring harness with key switch in OFF positionbTwist and remove all high tension leads from spark plugscDisconnect the battery cables at the battery Replace any locking fastener (locknut or patch screw) if its locking feature becomes weakDefinite resistance to tightening must be felt when reusing locking fastenerIf replacement is indicated, use only authorized replacement or equivalent To prevent sudden movement when starting engine and possible "man overboard" situations, test the "start-in-neutral-only" system before returning engine to customer