myroad700 Werkstatthandbuch : Seite 26

          1. GENERAL INFORMATION                                                                MYROAD 700i



 TROUBLESHOOTING (XCITING 250 AFI)

 ENGINE WILL NOT START OR IS HARD TO START


 Inspection/Adjustment                         Symptom                   Probable Cause

 1. Make sure engine stop switch
    is ON.
 2. Put the side stand up.
 3. Connect the diagnostic tool,
    then check EMS and correct
    problems.
                                                                         Empty fuel tank
                                                                         Clogged fuel pump
                              Fuel reaches fuel    Fuel does not reach   filter
                              injector             fuel injector         Faulty fuel pump
                                                                         Faulty fuel cut-off
                                                                         relay
 Remove spark plug and                                                   Cracked fuel hose
 install it into spark plug
 cap to test spark by
 connecting it to engine
 ground                                                                  Faulty spark plug
                                                                         Fouled spark plug
                                                                         Faulty ignition coil
                                 Spark jumps       Weak or no spark      Faulty CPS
                                                                         Broken or shorted ignition coil
                                                                         Broken or shorted CPS
                                                                         Faulty ignition switch
 Remove the fuel injector, start
 the starter motor to check fuel
 injector operation.
                                                                         Faulty fuel injector
                              Fuel supply          No fuel supply        Clogged fuel injector
                                                                         Faulty ECU

 Test cylinder
 compression
                                                                         Starter motor idles but
                                                                         crankshaft does not rotate
                                                                         Valve clearance too small
                                 Normal                  Low or no       Improper valve and seat contact
                                 compression             compression     Worn cylinder and piston rings
                                                                         Blown cylinder head gasket
                                                                         Flaws in cylinder head
                                                                         Seized valve
                                                                         Improper valve timing




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