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/InstallationOil Pump Removal
Remove:
Coolant (Drain, see Coolant Change in the Periodic
Maintenance chapter)
Engine Oil (Drain, see Engine Oil Change in the Periodic
Maintenance chapter)
Sidestand Switch Lead Connector [A] (Disconnect)
Bolt [B] and Water Pipe [C]
Water Pump Cover Bolts [D]
Water Pump Cover [E ...
Troubleshooting Guide
NOTE
Refer to the Fuel System chapter for most
of DFI trouble shooting guide.
This is not an exhaustive list, giving every
possible cause for each problem listed. It
is meant simply as a rough guide to assist
the troubleshooting for some of the more
common difficulties.
Engine Doe ...
Handlebar Removal
Remove:
Steering Damper (see Steering Damper Removal)
Clutch Lever Clamp Bolts [A]
Clutch Lever Assembly [B]
Left Switch Housing [C]
Handlebar Weight [D]
Left Handlebar Grip [E]
Remove:
Front Master Cylinder [A] (see Front Master Cylinder Removal
in the Brakes chapter)
...