Yamaha YZF-R1 Series Service Manual page 191

4 3
8. Install:
• Front wheel sensor
• Front wheel sensor protector (for YZF-R1M)
Front wheel sensor bolt
7 N·m (0.7 kgf·m, 5.2 lb·ft)
Front wheel sensor protector bolt
(for YZF-R1M)
7 N·m (0.7 kgf·m, 5.2 lb·ft)
ECA21020
NOTICE
Make sure there are no foreign materials in
the front wheel sensor rotor and front wheel
sensor. Foreign materials cause damage to
the front wheel sensor rotor and front wheel
sensor.
TIP
• When installing the front wheel sensor, check
the front wheel sensor lead for twists.
• To route the front wheel sensor lead, refer to
"CABLE ROUTING" on page 2-17.
9. Measure:
• Distance "a"
(between the front wheel sensor rotor "1" and
front wheel sensor "2")
Out of specification → Check the wheel bear-
ing for looseness, and the front wheel sensor
and sensor rotor installation conditions
(warpage caused by overtorque, wrong in-
stallation direction, rotor decentering, LOC-
TITE® on the mounting surface of the rotor,
deformation caused by an impact during ser-
vice and caught foreign materials). If there is
any defective part, repair or replace the de-
fective part.
2 1
TIP
Measure the distance between the front wheel
sensor rotor and front wheel sensor in several
places in one rotation of the front wheel. Do not
turn the front wheel while the thickness gauge is
installed. This may damage the front wheel sen-
sor rotor and the front wheel sensor.
G088903
10.Install:
• Front brake calipers
• Front brake hose holder
EWA13500
Make sure the brake hose is routed properly.
4-42
FRONT WHEEL
Distance "a" (between the front
wheel sensor rotor and front
wheel sensor)
0.9–1.7 mm (0.035–0.067 in) (for
YZF-R1)
1.1–1.9 mm (0.043–0.075 in) (for
YZF-R1M)
Thickness gauge
90890-03268
Feeler gauge set
YU-26900-9
1
2
Front brake caliper bolt
35 N·m (3.5 kgf·m, 26 lb·ft)
Front brake hose holder bolt
6 N·m (0.6 kgf·m, 4.4 lb·ft)
WARNING
a
2
1