Chrysler 75 and 85 HP Outboards Service Manual OB 3646, Page 76Get this manual
Test3C-D Unit (Bench Test)1Check battery voltage by connectingBATT P" test lead to positive battery terminal andBATT N" test lead to negative battery terminal testerVoltage must read 12 volts minimum 2Connect test leads from C-D tester as shown in Figure 12
When battery test leads are connectedtheCD INtest lead from C-D tester isLIVE"Be certain it does not contact any metallic object or sparks may occur and possibly cause ignition of gasoline vaporsPosition voltage adjustment knob at extreme clockwise position Read voltage on voltmeter of