super 8 50 2t 1 Manuel atelier : Page 24

          2. GENERAL INFORMATION                                                 SUPER8 50 2T

TROUBLESHOOTING
  ENGINE WILL NOT START OR IS HARD TO START


  Inspection/Adjustment                Symptom                   Probable Cause

  Check if fuel reaches
  carburetor by
  loosening drain
  screw.
                                                                 Empty fuel tank
                             Fuel reaches     Fuel does not      Clogged float valve
                             carburetor       reach carburetor   Clogged charcoal canister
                                                                 Clogged fuel filter
                                                                 Faulty auto fuel valve
  Remove spark plug
  and install it into
  spark plug cap to test
  spark by connecting it                                         Faulty spark plug
  to engine ground.                                              Fouled spark plug
                                                                 Faulty CDI unit
                            Spark jumps      Weak or no spark    Faulty A.C. generator
                                                                 Broken or shorted ignition
                                                                 coil
                                                                 Broken or shorted exciter
                                                                 coil
  Test cylinder                                                  Faulty ignition switch
  compression.
                                                                 Burned or worn cylinder
                                                                 piston
                             Normal              Low or no       Faulty reed valve
                             compression         compression     Blown cylinder head gasket
                                                                 Leaking crankcase
  Start engine by                                                Faulty crankcase oil seal
  follow-ing normal
  starting procedure.

                                                                 Incorrectly adjusted idle
                           Engine does not    Engine fires but   speed
                           fire               does not start     Air leaking through intake
                                                                 pipe
                                                                 Incorrect ignition timing

  Remove spark plug
  and inspect again.

                                                                 Flooded carburetor
                           Dry spark plug      Wet spark plug    Throttle valve excessively
                                                                 open
  Wait for 30 minutes
  and then remove the
  carbu-retor auto
  choke circuit hose
  and blow the hose
  with mouth.
                            Not clogged           Clogged        Faulty auto bystarter




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