1990 Johnson Evinrude "ES" Electric Trollers Service Manual, P/N 507869, Page 85Get 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 such as parts cleaners, primers, sealants and sealant removers To prevent possible damage, make sure all wiring is properly routed and clamped in its original position away from rotating motor components Do not charge battery in the boat with an external chargerFumes vented during charging can lead to an explosion Before working on or removing any electrical parts, disconnect the battery cables at battery to prevent electrical sparks