Peugeot Speedfight - Workshop Manual > Electricity

Ignition principle schematic/Carburetor heater

1. Ignition switch.
2. Battery.
3. CDI unit.
4. Spark plug socket.
5. Spark plug.
6. HT coil.
7. Carburetor heater.
8. Temperature control unit.
9. Automatic starter.
10. Magneto flywheel.
11. Revolution counter.
12. Regulator.

Temperature control unit/Regulator/Starter motor relay/Ignition unit

• Remove the storage compartment. See: Procedure 1.
• Remove:
  • Regulator (1).
  • The starter motor relay (2).
  • The ignition module (3).
  • The temperature control unit (4).

Checking the carburettor heating circuit

Power supply range of the carburettor heating resistor:

Between 10+-2 and 20+-2 ºC.

Disconnect the temperature control unit and take the measurements on the harness side.

• Between the green wire and the ground: 0 .
• Between the white/yellow wire and the ground (Resistor warming carburator): 8.5+-20%.
• Between the black wire and the ground, ignition on: 12 V (Battery voltage).
• Between the yellow wire and the ground, engine running: 13.5 V (Regulated alternating current).

• If the values are correct, replace the temperature control unit.
• If the values are incorrect, check:
  • The harness.
  • The ignition switch.
  • The carburettor heating resistor: 8.5+-20%.

Checking the ignition system

Disconnect the ignition unit and take the measurements on the harness side.

• Between the green wire and the ground: 0
• Between the yellow/black wire and the ground (Primary high voltage coil): 0.2 +-20%.
• Between the green/black wire and the ground (Ignition sensor) : 115+-20%.
• Between the black wire and the ground, ignition on: 12 V (Battery voltage).

• If the values are correct, replace the ignition module.
• If the values are incorrect, check:
  • The ignition switch.
  • The harness.
  • The high voltage coil.

Primary: 0.2+-20%.
Secondary: 5+-20%.

• The suppressor: 5 k+-20%.
• The ignition sensor

Between the green/black wire and the ground: 115+-20%.

Fuel gauge

• Remove the footboard. See: Procedure 7.
• Disconnect the fuel gauge (1).
• Remove the fuel gauge (4 screw).
• Remove the rubber gasket.

When re-installing, use a new gasket.

Fuel gauge check

• Check the resistance between the terminals depending on the upper and lower positions of the float.

1. Full fuel tank: 10+-20%.
2. Empty fuel tank: 95+-20%.

See also: