1997 Johnson Evinrude "EU" Electric Outboards Service Manual, P/N 507260, Page 48Get this manual
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Motor Tube WiringResistorHand Control Models
I Note To avoid damaging components or troubleshooting equip-
ment, disconnect the battery cables before proceeding
1Remove the steering housing cover
2Turn speed control switch to OFF3Use an ohmmeter calibrated on low ohms scale to test the condition of the resistor assembly and motor tube wiring
m 4The terminal numbers and their locations on the speed control switch are as shown (terminal side of switch)
5Connect the ohmmeter between the terminals with the RED and GREEN leads (terminals "1" and "2", 12 Volt, terminals "2" and "4", 24 Volt): The meter should show 0.18-0.22 ohm resistance If measured resistance is significantly different AND motor does not respond to speed control change, refer to Resistor AssemblyExcept HBF2 in this section