NOTE
Be sure the battery is fully charged.
Do not disconnect the ECU connectors.

Special Tool - Needle Adapter Set: 57001-1457
Stick Coil Input Voltage Connections to ECU Connector: For Stick Coil #1 Digital Meter (+) → BK lead (terminal 65) Digital Meter (–) → Frame Ground terminal
For Stick Coil #2
Digital Meter (+) → BK/R lead (terminal 52) Digital Meter (–) → Frame Ground terminal
For Stick Coil #3
Digital Meter (+) → BK/W lead (terminal 78) Digital Meter (–) → Frame Ground terminal
For Stick Coil #4
Digital Meter (+) → BK/O lead (terminal 51) Digital Meter (–) → Frame Ground terminal
Input Voltage Standard: Battery Voltage
If the input voltage is out of the standard, check the wiring for continuity (see Stick Coil Circuit)
Special Tool - Hand Tester: 57001-1394
If the wiring is good, check the ECU for its ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).
If the input voltage is within the standard, check the ECU for its ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).
Stick Coil Circuit

1. ECU
2. Engine Stop Switch
3. Stick Coil #1
4. Stick Coil #2
5. Stick Coil #3
6. Stick Coil #4
7. Ignition Switch
8. Joint Connector F
9. Fuse Box 1
10. Ignition Fuse 15 A
11. Frame Ground 1
12. Starter Relay
13. Main Fuse 30 A
14. Battery
15. Engine Ground
Stick Coil Removal/InstallationCAN Communication Line
CAN Communication Line
Resistance Inspection
In this model, resistors for CAN communication line are
built in the ECU [A] and meter unit.
Refer to the Meter Unit Inspection in the Electrical System
chapter for the resistor in the meter unit.
Turn the ignition switch to OFF.
Remove:
EC ...
Payload and Tire Pressure
Failure to maintain proper inflation
pressures or observe payload limits for
your tires may adversely affect handling
and performance of yourmotorcycle
and can result in loss of control. The
maximum recommended load in addition
to vehicle weight is 180 kg (397 lb),
including rider, passenger, ...
ECU Removal
NOTICE
Never drop the ECU especially on a hard surface.
Such a shock to the ECU can damage it.
Remove the upper air cleaner housing (see Air Cleaner
Element Replacement in the Periodic Maintenance chapter).
Lift up the ECU [A] with rubber protector [B] to disconnect
the connectors [C]. ...