Checking The Vehicle Using The Yamaha Diagnostic Tool; Checking The Fuel Line - Yamaha MT-09 2021 Service Manual

EAS32024
CHECKING THE VEHICLE USING THE
YAMAHA DIAGNOSTIC TOOL
Use the YDT and check the vehicle according to
the following procedure.
1. Remove:
• Rider seat
Refer to "GENERAL CHASSIS (1)" on
page 4-1.
2. Remove the protective cap, and then connect
the YDT to the coupler.
Refer to "YDT" on page 9-3.
Yamaha diagnostic tool USB
90890-03267
Yamaha diagnostic tool (A/I)
90890-03264
TIP
• Yamaha diagnostic tool (A/I) (90890-03264) in-
cludes YDT sub harness (6P) (90890-03266).
• If you already have Yamaha diagnostic tool (A/
I) (90890-03262), YDT sub harness (6P)
(90890-03266) is separately required.
3. Check:
• DTC
TIP
Use the "Diagnosis of malfunction" function of
the YDT to check the DTC. For information
about using the YDT, refer to the operation man-
ual that is included with the tool.
DTC No. is displayed → Check and repair the
probable cause of the malfunction.
Refer to "SELF-DIAGNOSTIC FUNCTION
AND DIAGNOSTIC CODE TABLE" on
page 9-48.
4. Perform:
• Dynamic inspection
TIP
Use the "Dynamic inspection" function of the
YDT version 3.0 and after to perform the dynam-
ic inspection. For information about using the
YDT, refer to the operation manual that is includ-
ed with the tool.
5. Install:
• Rider seat
Refer to "GENERAL CHASSIS (1)" on
page 4-1.
PERIODIC MAINTENANCE
EAS30619

CHECKING THE FUEL LINE

The following procedure applies to all of the fuel,
drain and breather hoses.
1. Remove:
• Rider seat
Refer to "GENERAL CHASSIS (1)" on
page 4-1.
• Fuel tank center cover
Refer to "GENERAL CHASSIS (1)" on
page 4-1.
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
2. Check:
• Fuel hose "1"
• Fuel tank breather hose "2"
• Fuel tank drain hose "3"
Cracks/damage → Replace.
Loose connection → Connect properly.
ECA14940
NOTICE
Make sure the fuel tank breather hose is rout-
ed correctly.
TIP
Before removing the fuel hoses, place a few
rags in the area under where it will be removed.
1
3. Install:
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
• Fuel tank center cover
Refer to "GENERAL CHASSIS (1)" on
page 4-1.
• Rider seat
Refer to "GENERAL CHASSIS (1)" on
page 4-1.
3-4
2
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