69J3D11 9-52123456789Ignition systemGood operat-ing condition? Replace the pressure regulator.YesNoCheck the high-pressure fuelpump relay.Is therecontinuity?YesNoCheck the fuel system using theYamaha Diagnostic System.Replace the high-pressure fuelpump relay.Out ofspecification?YesNoOut ofspecification?YesOut ofspecification?NoYes Check the ignitionsystem using theYamaha DiagnosticSystem.Replace the ignition coil.Check the ignition spark gap using the spark gap tester.Replace the spark plug.Check the ignition system out-put peak voltage.Check the ignition coils resist-ence.No Check the ignitionsystem using theYamaha DiagnosticSystem.Power unit
