60
12/04
SPIDER MAX 500
B
12.2
Pump supply circuit
The central unit controls the pump operation when the following conditions occur:
- move the key switch to the “ON” position and the emergency switch on “RUN” and lift the side stand. The pump is
supplied for 2 seconds.
- when the engine rpm/ speed signal is on.
Continuous supply.
The initial time is necessary to bleed the system, especially in case of a stop at warm engine.
In these conditions, the fuel, modified by the boiling is mixed with the fuel contained in the tank.
During the motorcycle use, the pump operation is subordinate to the motor revolution.
12.3
Circuit check
Follow the above instructions to check the circuit:
Try to start the engine. Make sure that the engine
revolution occurs together with the pump rotation.
The pump does not rotate or
keeps rotating.
No anomaly in the electrical supply
Connect the diagnostic multimeter to the
motorcycle system.
Try to start the engine. Select the menu from the function ”ERRORS”.
Check for any possible anomaly.
Pump control relay circuit
malfunctioning.
Malfunctioning of the:
- injector
- H.T. coil
- signal panel
H.T. coil
•
Stepper motor
Pump relay
Relay fan
Auto-adap. param.
RAM memory
Errors 2/3 A
Throttle
Pressure
Water temperature
Air temperature
Battery voltage
Injector
•
Errors 1/3 A
H.T. coil
Stepper motor
Pump relay
• •
Relay fan
Auto-adaptation parameters
RAM memory
Errors 2/3 A M
- Lift the side stand.
- Position the key switch on the “ON” position.
- Position the emergency switch on “RUN”.
- The pump rotation is monitored for two seconds.
