dinkstreet 125 Manuel atelier : Page 173

          14. DOWNTOWN 125 i           FUEL SYSTEM (Auto Control Fuel Injection System)


 SERVICE INFORMATION
 GENERAL INSTRUCTIONS
 Gasoline is very dangerous. When working with gasoline, keep sparks and flames away
   from the working area.
   Gasoline is extremely flammable and is explosive under certain conditions. Be sure to
   work in a well-ventilated area.
 · Disconnect the cables of the battery when the engine is running, which could lead to ECU
   damage.
 · Connect the harness positive (+) cable to the battery negative (-) terminal or connect the harness
   negative (-) to the battery positive (+) terminal, which could lead to ECU damage.
 · Always keep fuel over 750 cc in fuel tank.
 SPECIFICATIONS
                      Item                                            Standard
 Charging voltage of battery                     13.5~14.5V
 Voltage from the ECU to sensor                  50.1V
 Fuel injector resistance (20°C/68°F)            10.6~15.9


 Water temperature sensor resistance             2.07510 K (20~30°C)


 Throttle position sensor voltage                Idle (0°)=0.230.05V
                                                 Throttle fully (90° /3.27V over)

 Fuel pump resistance (20°C/68°F)                F: about 1100 E: about 100
              O2 sensor heater resistance        6.7~9.5
 O2 sensor               Air/Fuel<14.7 (Rich) >0.7V
              Voltage
                         Air/Fuel>14.7 (Lean) <0.18V


                     Item                                             Standard
 Crank position sensor (Pulser) resistance       95~144
 (20°C/68°F)
 Inductive ignition coil resistance (20°C/68°F) 0.55~0.75

 Roll sensor voltage (diagnostics)               Normal: 0.3~1.4V
                                                 Over 65° fall down: 3.5~4.7V
 Idle speed                                      1850100 rpm




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