Yamaha WR450F 2021 Owner's Service Manual page 73

1. Clutch cable
2. Throttle cable (return)
3. Throttle cable (pull)
4. Cable holder
5. Yamaha diagnostic tool coupler (black)
6. Intake air temperature sensor coupler (black)
7. Radiator hose
8. Rectifier/regulator
9. Rectifier/regulator lead
10.Rectifier/regulator coupler
11.Battery band
12.Starter relay (blue tape)
13.Diode 5
14.Headlight relay (yellow tape)
15.Radiator fan motor fuse
16.Starter motor lead
17.Gear position switch lead
18.Lower engine bracket
19.Stator coil assembly lead
20.Gear position switch coupler
21.Stator coil assembly coupler
22.Tension arm
23.Wire harness
24.Tank rail
25.Engine stop switch lead
26.Radiator
27.Radiator breather hose
28.Crankcase cover
29.Crankcase
A. Pass the engine stop switch lead between the
frame and the cable holder.
B. Fasten the engine stop switch coupler (2P) to
the bracket of the inside. Fasten the coupler
(4P) to the bracket of the outside.
C. Pass the rectifier/regulator lead (wire harness
side) to the inside of the tension arm (the side
of the vehicle).
D. Fasten the rectifier/regulator coupler to the
bracket. Attach the coupler cover.
E. Position the lock at the lower side of the vehi-
cle, cut the end of the plastic locking tie fac-
ing downward.
F. Place the diode outer than the starter relay
and the headlight relay.
G. Fasten the starter motor lead to the bracket
using the plastic locking tie. Position the lock
part of the plastic locking tie to rear side of
the vehicle. Cut the end of the plastic locking
tie.
H. Route the starter motor lead along the cylin-
der body without slack.
I. Route the gear position switch lead along the
crankcase without slack.
J. Pass the gear position switch lead to the
inside of the lower engine bracket (the side of
the vehicle).
CABLE ROUTING DIAGRAM
K. Pass the clutch cable with no downward sag
allowed.
L. Bring the protector of the clutch cable into
contact with the radiator hose, and pass it to
the outside of the gear position switch lead
and the stator coil assembly lead (the outside
of the vehicle).
M. No pinch is allowed the leads between the
radiator hose and the tension arm.
N. Pass the stator coil assembly lead through
back of the radiator. No pinch is allowed
between the radiator and the tension arm.
O. After connecting the gear position switch cou-
pler, attach the coupler cover.
P. After connecting the stator coil assembly cou-
pler, attach the coupler cover.
Q. Pass the main harness to the front of the radi-
ator hose (the front of the vehicle), and to the
inside of the throttle cable (the side of the
vehicle).
R. Pass the engine stop switch lead between the
Yamaha diagnostic tool coupler and the tank
rail.
S. Route the radiator breather hose between the
downtubes.
T. Clamp the clutch cable at the front of the lead
(the front of the vehicle).
U. Insert the clamp into the hole in the frame.
Cut off the excess end of the locking portion,
and the locking portion should face toward
the front of the vehicle.
V. Diagram for routing the radiator hose and
radiator breather hose.
2-20