Gilera Fuoco 500 - Starting Difficulties; Engine Start-Up Problems; Engine Stops at Idle

Starting difficulties
ENGINE START-UP PROBLEMS
Possible Cause Operation
Presence of faults detected by the self diagnosis Pump relay
HV coil
Injector
revolution timing sensor
Air temperature
Coolant temperature.
Start up engine speed Starter motor and remote control
Battery
Earth connections
End of compression pressure End of compression pressure
Power to the spark plug Spark plug
Shielded cap
HV coil
Phase rpm sensor
- Ignition advance
Fuel supply Fuel pressure (low)
Injector capacity (low)
Injector seal (poor)
Correctness of the parameters Coolant temperature.
Stepper throttle valve position intake air tempera-
ture (steps and actual opening)
Cleaning of the auxiliary air pipe and air filter effi-
ciency gas valve
Engine stops at idle
ENGINE DOES NOT HOLD IDLING/ IDLING IS UNSTABLE/ IDLING TOO LOW
Possible Cause Operation
Presence of faults detected by the self diagnosis Pump relay
HV coil
Injector
revolution timing sensor
Air temperature
Coolant temperature.
Ignition efficiency Spark plug
Ignition timing
Correctness of the parameters Throttle valve position sensor
Stepper
Coolant temperature sensor
Intake air temperature sensor
Intake system cleaning Air filter
Diffuser and gas sensor
Supplementary air pipe Stepper
Intake system seal (infiltrations) Intake manifold - head
throttle body - manifold
Intake manifold
Filter box
Fuel feed (low pressure) Fuel pump
Pressure regulator
Fuoco 500 i.e. Injection
INJEC - 9