2008-2010 Kawasaki KFX450R Factory Service Manual, Page 428Get this manual
16-28 ELECTRICAL SYSTEM Charging System
RegulatorRectifier Output Voltage Inspection
Check the battery condition (see Charging Condition Inspection) Warm up the engine to obtain actual alternator operating conditionsthat ignition switch is turned Checktesterthe the battery terminalsoff, and connect hand to
and note the voltage readings at various Start the enginewith the headlight turned on and then offengine speeds The readings should show nearly battery voltage when the engine speed is low, and as the engine speed increases, the readings should also increaseRegulatorRectifier Output Voltage Tester Range 25 DC Connections Tester (+) to Battery (+) Tester () to Battery () Reading 14.0 14.5 Special ToolHand Tester: 57001-1394