Yamaha MT-09 2021 Service Manual page 63

1. Throttle body
2. Throttle servo motor coupler
3. Fuel tank breather hose
4. Wire harness (to coolant temperature sensor)
5. Crankshaft position sensor coupler
6. Fuel pump coupler
7. Relay unit
8. Rear wheel sensor coupler
9. Battery box
10. Battery
11. Coupler cover
12. Radiator fan motor relay
13. ABS ECU coupler
14. Joint coupler
15. Rear brake light switch coupler
16. Rear brake light switch lead
17. Fuel tank drain hose
18. Sidestand switch coupler
19. Shift sensor coupler
20. Wire harness (to ECU)
21. Stator coil coupler
22. Wire harness
23. Injector #1 coupler
24. Ignition coil #1 coupler
25. Intake air pressure sensor 2
26. Ignition coil #2 coupler
27. Injector #2 coupler
28. Intake air pressure sensor 1
29. Ignition coil #3 coupler
30. Injector #3 coupler
31. Throttle position sensor coupler
32. Wire harness (to rectifier/regulator)
33. Clamp
34. Frame
35. Body ground 3
36. Ground bolt
37. Body ground 1, 2, 4, 5
38. Wire harness (to throttle body)
39. Starter motor lead
A. Slide the coupler cover until the coupler is
covered and face the open side of the coupler
cover to underside of the vehicle.
B. Route the fuel tank breather hose on the left
side of the wire harness (to throttle servo
motor) and wire harness (to coolant tempera-
ture sensor). Route the fuel tank breather
hose on the right side of the wire harness
(to stator coil), wire harness (to shift sensor),
wire harness (to sidestand switch) and stator
coil lead.
C. Insert the relay unit until it touches the rib on
the battery box.
D. Insert the rear wheel sensor coupler into the
hole of the battery box.
E. Pass the wire harness (to radiator fan motor
relay) into the coupler cover and push it
between the wire harness (to ABS ECU) and
wire harness (main line).
F. Insert the joint coupler into the rib of the bat-
tery box.
G. Route the rear brake light switch lead
between the wire harness and joint coupler.
(between clamp and rear brake light switch)
H. Route the wire harness (to fuel pump) on the
front side of the rear brake light switch lead.
I. Route the wire harness (to ignition coil #3) to
the left side of the cylinder head breather
hose.
J. Insert the clamp into the hole of the throttle
body.
K. Face the end of the plastic locking tie back-
ward.
L. Insert the clamp into the hole of the battery
box.
M. Fix the plastic locking tie with the white tape
part on the wire harness.
N. Fix the rear brake light switch lead with the
gray tape part.
O. Insert the clamp into the hole of the frame.
P. Route the body ground 3 is located above the
body grounds 1, 2, 4, and 5, and their
crimped parts of the terminals do not overlap
and face them upper side.
Q. Install the crimped parts of the terminals of
body ground 1, 2, 4, and 5 to face the upper
side.
R. Route the starter motor lead on the inside of
the clamp.
S. Insert the radiator fan motor relay all the way
into the bottom of the coupler cover until it
stops the stopper of the rib on the battery
box.
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CABLE ROUTING