ECU Communication Error (Service Code 39)
Fuel Pump Relay Removal/InstallationSystem Components
1. FI ECU
The FI ECU analyzes the motorcycle conditions based
on the signals from the front/rear wheel rotation sensors
and FI sensors (such as the crankshaft sensor and main
throttle sensor), and controls engine power by reducing the
number of ignition and retarding the ignition timing. The
m ...
Lap Counter/Coolant/Intake Air Temperature Meter
This meter shows the coolant temperature,
the intake air temperature or
the lap number. The lap number is displayed
in the stop watch mode, refer to
the “Stop Watch” item in this section.
A. Lap Counter/Coolant / Intake Air
Temperature Meter
The coolant temperature meter and
inta ...
Stick Coil Inspection
Remove the stick coils (see Stick Coil Removal).
Measure the primary winding resistance [A] as follows.
Connect the hand tester between the coil terminals.
Set the tester to the × 1 Ω range, and read the tester.
Measure the secondary winding resistance [B] as follows.
Conn ...