1990 Johnson Evinrude "ES" 9.9 thru 30 Service Repair Manual, P/N 507871, Page 285Get this manual
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Starter Circuit Check, 2030 Remote Step Pracedure Remove bIack lead from groundResult If meter does not read voltage, proceed to STEP 2 If meter reads 12 volts (batt ery voltage) reconnect bIack lead