Yamaha WR450F Owner's Service Manual page 363

2. Connect the FI diagnostic tool sub-lead.
FI diagnostic tool sub–lead
90890-03212
FI diagnostic tool sub–lead
YU-03212
ECA
NOTICE
In order to avoid short circuit, insulate the battery connection terminals of the FI diagnostic
tool sub-lead.
TIP
For information on how to connect and use the Yamaha diagnostic tool, refer to "YAMAHA DIGNO-
STIC TOOL OPERATION MANUAL".
1. Vehicle
2. Coupler for connecting optional part
3. FI diagnostic tool sub-lead
4. Sub-harness (included with the Yamaha di-
agnostic tool)
5. Vehicle communication cable (included with
the Yamaha diagnostic tool)
6. Yamaha diagnostic tool
1
2
3
2
FUEL INJECTION SYSTEM
4 5
9-33
6