3-12 FUEL SYSTEM (EFI)
EFI Servicing Precautions
There are a number of important precautions that should
be followed servicing the EFI system.
This EFI 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 EFI parts, do not discon-
nect the battery cables or any other electrical con-
nections when the ignition switch is on or while the
engine is running.
Take care not to short the leads that are directly
connected to the battery positive (+) terminal to the
chassis ground.
When charging, remove the battery from the
motorcycle. This is to prevent ECU damage by ex-
cessive voltage.
Do not turn the ignition switch ON while any of the
EFI electrical connectors are disconnected. The
ECU memorizes service codes.
Do not spray water on the electrical parts, EFI parts,
connectors, leads, and wiring.
Whenever the EFI electrical connections are to be
disconnected, 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 EFI electrical connections are firmly re-
connected before starting the engine.
Connect these connectors until they click [A].
If a transceiver is installed on the motorcycle, make
sure that the operation of the EFI 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 pos
sible away from the ECU.
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