SYSTEM DIAGRAM
Specification Desc./Quantity
1 Injection ECU
2 Diagnostics socket connector
3 Fuel pump
4 Water temperature sensor
5 Fuel injector
6 HV coil
7 Engine Speed sensor
8 Lambda sensor
9 Injection load solenoid
10 Start-up solenoid
11 Battery 12V - 12 Ah
12 Main fuses
13 Electric fan solenoid
14 Electric fan
15 Stand switch
16 engine stop switch
17 Ignition switch contacts
18 Auxiliary fuses
19 Immobilizer LED
20 "WARNING" light
21 Water temperature gauge
22 Immobilizer aerial
23 Fall sensor
24 Voltage regulator
25 Magneto flywheel
Troubleshooting procedure
Engine does not start
ENGINE DOES NOT START IF ONLY PULLED
Possible Cause
Operation
Immobiliser enabling signal System not encoded
System not efficient, repair according to the indications of the
self-diagnosis
Presence of faults detected by the self diagnosis Pump relay
HV coil
Injector
Revolution timing sensor
Fuel system Fuel in the tank
Fuel pump activation
Fuel pressure (low)
Injector capacity (low)
Power to the spark plug Shielded spark plug cap HV coil (secondary insulation)
Parameter reliability Coolant temperature
Distribution timing - injection ignition
Intake air temperature
End of compression pressure End of compression pressure
Starting difficulties
ENGINE STARTER PROBLEMS
Possible Cause
Operation
Presence of faults detected by the self diagnosis Pump relay
HV coil
Injector
Revolution timing sensor
Beverly 300 i.e. Injection
INJEC - 173
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