1970 Evinrude Ski-Twin, Ski-Twin Electric 33 HP Service Manual 4687, Page 66Get this manual
DESCRIPTION The 33 HP Electric Starting Model electrical system is made up of the ignition system, the starter system, and the storage batterySee Figure 7-1The starter solenoid and motor cable connector are located in the lower motor coverSee Figure 7-2TROUBLESHOOTING THE ELECTRICAL SYSTEM
Trouble in the electrical system often is first evidenced by failure of the starter to operate, and may be caused by failure of anyone or more of the components covered in this sectionA large percentage of electrical circuit as well as component failures are caused by loose or dirty electrical wiring connectionsStarter system troubleshooting is included in the Trouble Check Chart in Section 2Servicing of the starter solenoid and starter, and battery maintenance, are covered in this Section
Figure 7-3Light Load Test BA TTERY TESTING The condition of the battery cells may be checked quickly and accurately by the following "light load test" procedureSee Figure 7-3aBefore starting the test, add water as necessary to bring the electrolyte to the proper levelbPlace load on battery by holding starter switch on for secondsIt makes no difference whether starter turns motor or notcTurn on an to 10 ampere load by turning on lights or other accessoriesAfter minute, with to 10 ampere load still on, read individual cell voltages of battery with voltmeter having .01 volt scale divisionNOTE After testing, close openings made in sealing compound by the probes of the voltmeter above the connector straps, by pressing the sealing compound with blunt toolIf any cell reads 1.95 volts or more, and the differ-