myroad700 Manuel atelier : Page 29

          1. GENERAL INFORMATION                                                                 MYROAD 700i

 POOR PERFORMANCE (ESPECIALLY AT IDLE AND LOW SPEEDS)


  Inspection/Adjustment                         Symptom                  Probable Cause
  Connect the diagnostic
  tool, then check EMS and
  correct problems.
  Check ignition timing



                                                                         Faulty ignition coil
                               Correct timing        Incorrect timing    Faulty CPS
                                                                         Faulty ECU
  Check fuel injector for
  clogging


                                Not Clogged                Clogged       Fouled fuel injector
                                                                         Faulty fuel pump


  Check intake manifold
  for air leaks
                                                                         Damage insulator rubber
                                                                         Throttle body not securely
                                No air leak               Air leaks      tighten
                                                                         Faulty intake manifold
  Remove spark plug and                                                  O-ring
  install it into spark plug
  cap to test spark by
  connecting it to engine
  ground
                                                                         Faulty CPS
                                                                         Faulty ignition coil
                                                    Weak or              Broken or shorted
                                Good spark          intermittent spark   high tension wire
                                                                         Faulty spark plug
  Check throttle body




                                                                         Fouled throttle body
                                   Good                    Faulty        Faulty TPI reset




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