1990 Johnson Evinrude "ES" 60 thru 70 Service Manual, P/N 507873, Page 8Get 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 passengers To prevent possible eye injury, always wear SAFETY GLASSES while servicing the unit Always read and follow safety related precautions found on containers of hazardous substances like parts cleaners, primers, sealants and sealants removers 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 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