1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 229Get this manual
Service Specifications Stator Resistance Chart Model 60-70
No Load Current Specifications
Amps (Maximum) 32
Model 60-70
Voltage 1212.4
RPM 57508000
Battery Cable Extensions
The following are minimum specifications for stranded copper cable without splicesCable measurements given are from the motor to the batteryThe maximum length is 20 ft(6,1 m), regardless of cable diameterThese specifications do not apply to aluminum battery cablesOMC does not recommend the use of aluminum battery cablesMinimum Recommended Gauge