Benelli ZAFFERAN 250 - 17.3 Methods for Fault Diagnosis and Maintenance; 17.3.1 Direct Diagnosis through the Flickering Trouble Light (FI) on the Instrument Panel

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regulator and fuel pump
Do: make sure correct fuel pipe layout, without
any interference with other components
improper layout may damage the fuel pipe
Do: make sure sufficient fuel in the fuel tank
(close over the filter screen of the fuel pump)
avoid the fuel pump being "dry running'
Do: replace two O-rings during the maintenance
of the pressure regulator
ensure correct pressure adjustment curve of the
pressure regulator
Do: careful splicing for the connector assembly
of fuel pump assembly wire harness
prevent the connector terminals from being
damaged
Do: return all the crashed, damaged and
suspicious parts and make description of the
issues
make sure to find the root of the problem quickly
and correctly
17.2.9.13 Common Problems
a) The reverse connection of the connector of the fuel pump assembly causes the fuel
pump run backwards, thus leading to inadequate fuel pressure for the engine. As
a result, the engine cannot work normally.
b) The fuel pump is damaged and cannot run.
Note:
1. Since a new motorcycle has no gasoline in its fuel tank at the very beginning, much air
remains in the fuel line after the tank is fueled up. Therefore, it is necessary to turn the motor
over for several times to dissipate all the air in the fuel line so that the engine can operate
normally. This is a normal process, which will avoid the engine from taking a long time to start but
still in failure in the later startup.
2. The gasoline can cool down the fuel pump, so do no run the pump with little or no fuel, or
the fuel pump will be overheated and damaged.
17.3 Methods for Fault Diagnosis and Maintenance
The trouble light is on the instrument panel, with a sign of FI. In a normal circumstance, when
turning on the key, the trouble light will turn on to indicate the electronic control injection system is
powered-on and is ready to work. If the trouble light is off, it indicates that there is no power
supply in the electronic control injection circuit and thus it cannot work. In this case, check the
fuse and the connection of both positive and negative electrodes on the battery. After the engine
has been started, if the trouble light turns off, it indicates that there is no fault; otherwise, if the
trouble light is still on, it indicates that the electronic control injection system is abnormal and it is
necessary to remove the faults.
There are three methods for fault detection:
17.3.1 Direct Diagnosis through the Flickering Trouble Light
(FI) on the Instrument Panel
When any fault is confirmed, by switching the key for three times, i.e., turning the key on-off-on-
off-on,