super 9 3 Workshop-manual : Page 26

          1. GENERAL INFORMATION                                                         SUPER 9             50


 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 to engine                                              Faulty spark plug
 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 follow-                                              Faulty crankcase oil seal
 ing normal starting
 procedure.

                                                                      Incorrectly adjusted idle speed
                              Engine does not      Engine fires but   Air leaking through intake
                              fire                 does not start     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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