Yamaha YZ250FX 2021, Owner'S Service Manual

Page: 65 / 378

CABLE ROUTING DIAGRAM
2-20
1. Cross tube
2. Starter motor lead
3. Coolant temperature sensor coupler
4. Coolant temperature sensor lead
5. Cylinder head breather hose
6. Coupler (not used)
7. Start switch coupler
8. Cable guide
9. Start switch lead
10.Joint coupler
11.Throttle position sensor lead
12.Breather hose
13.Clip
14.3-way joint
15.Radiator breather hose
16.Throttle position sensor coupler
17.Radiator hose
18.Fuel hose
19.Fuel pump coupler
20.Joint coupler
21.Resistor coupler
22.Negative battery lead
23.Wire harness
24.Fuel tank
25.Rubber damper
26.Rear frame
27.Side cover
28.Bracket
29.Holder
A. 20 mm (0.7874 in)
B. Adjust any slack between the rear shock
absorber and the clamp of the side cover.
C. Route the cylinder head breather hose
through the inside of the coolant temperature
sensor lead.
D. Make sure the cable guide has contact with
the stamped location of the vehicle identifica-
tion number, and install it.
E. Insert the joint coupler into the plate and
secure it. After securing it, put the cover over
the joint coupler. The inserted portion of the
coupler should be hidden with the cover.
F. Route the throttle position sensor lead out-
side the vehicle past the breather hose.
G. Install the clips as shown in the illustration.
Then install the lower clip above the radiator
stay.
H. Align the red paint mark on the hose with the
convex mark on the 3-way joint, and then
install the cylinder head breather hoses.
I. Route the radiator breather hose outside the
breather hose. When doing so, cross them at
the bottom of the radiator.
J. After connecting the throttle position sensor
coupler, attach the cover.
K. Route the fuel hose in front of the fuel pump.
L. After connecting the fuel pump coupler,
attach the cover.
M. Fasten the starter relay lead and starter
motor lead with the plastic locking tie within
the range of the cross tube width. Make sure
that the locking portion of the plastic locking
tie faces to the lower side of the vehicle and
put it inside the rear frame without cutting off
the end.
N. Route the starter motor lead inside of the rear
frame and along the rear fender.
O. Place the resistor coupler under the starter
relay.
P. The routing order of leads not indicated does
not matter.
Q. Fasten the wire harness at the white tape
position using the plastic locking tie.
R. Position the lock part of the plastic locking tie
to downward of the vehicle. Cut the end of
the plastic locking tie.
S. Fasten the bracket to the tank rail (right)
using the rivet.
T. Cylinder head ridge line
U. When installing the engine ground lead termi-
nal, it can face either way. Make sure that the
terminal does not contact the cylinder head
bolt and that it faces to the rear beyond the
cylinder ridge line.
V. After connecting the coolant temperature
sensor 2-pin coupler (black), install the cou-
pler cover over the holder securely.