1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 144Get this manual

1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 144

& General Safety Warnings Before working on any part of the powerhead, read the section called Safety at the end of this
starting of engine while servicing, take adequate precautions to disarm the ignition system: Connect engine wiring harness
to boat wiring harness with key switch in OFF position Twist and remove all spark plug leads from spark plugs Disconnect
the battery cables at the batteryReplace 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