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3-22 FUEL SYSTEM (DFI)
DFI Servicing Precau tions
DFI Servicing Precautions
There are a number of important precautions that should
be followed servicing the DFI system.
○
This DFI system is designed to be used with a 12 V sealed
battery as its power source. Do not use any other battery
except for a 12 V sealed battery as a power source.
○
Do not reverse the battery cable connections. This will
damage the ECU.
○
To prevent damage to the DFI parts, do not disconnect the
battery cables or any other electrical connections when
the ignition switch is on, or while the engine i s running.
○
Take care not to short the leads that are directly con-
nected to the battery positive (+) terminal to the chassis
ground.
○
When charging, remove the battery from the motorcycle.
This is to prevent ECU damage by excessive voltage.
○
Whenever the DFI electrical connections are to be dis-
connected, first turn off the ignition switch, and disconnect
the battery (–) terminal. Do not pull the lead, only the con-
nector. Conversely, make sure that all the DFI electrical
connections are firmly reconnected before starting the en-
gine.
○
Connect these connectors until they click [A]
○
Do not turn the ignition switch ON while any of the DFI
electrical connectors are disconnected. The ECU memo-
rizes service codes.
○
Do not spray water on the electrical parts, DFI parts, con-
nectors, leads, and wiring.
○
If a transceiver is installed on the motorcycle, make sure
that the operation of the DFI system is not influenced by
electric wave radiated from the antenna. Check operation
of the system with the engine at idle. Locate the antenna
as far as possible away from the ECU.
○
When any fuel hose is disconnected, do not turn on the
ignition switch. Otherwise, the fuel pump will operate and
fuel will spout from the fuel hose.
○
Do not operate the fuel pump if the pump is completely
dry. This is to prevent pump seizure.
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