1993 Johnson Evinrude "ET" Electric Outboards Service Manual, P/N 508280, Page 134Get this manual
& General Safety Warnings When replacement parts are required, use genuine OMC parts or parts with equivalent characteristics including type, strength and materialFailure to do so may result in product malfunction and possible injury to the operator andor passengersTo prevent possible eye injury always wear SAFETY GLASSES while servicing the unitAlways read and follow safety related precautions found on containers of hazardous substances like parts cleaners, primers, sealants, and sealant removersReplace any locking fastener (locknut or patch screw) if its locking feature becomes weakDefinite resistance to turning must be felt when reusing locking fastenerIf replacement is indicated, use only authorized replacement or equivalentTo prevent possible damage, make sure all wiring is properly routed and c:;lamped in its original position away from rotating motor componentsWhen using shop air for cleaning or drying parts: Be sure air supply is regulated to not more than 25 PSI (172 kPa) Be sure you use appropriate eye protection to avoid personal injury