2001 YAMAHA TTR125 steering

5 - 51
CHAS
EC563000
REMOVAL POINTS
EC563202
Ring nut
1. Remove:
lRing nut 1
Use the steering nut wrench 2.
WARNING
Support the steering shaft so that it may
not fall down.
Steering nut wrench:
YU-33975/90890-01403
Bearing race
1. Remove:
lBearing race 1
Remove the bearing race using long
rod 2 and the hammer.
EC563300
Bearing (lower)
1. Remove:
lBearing (lower) 1
Use the floor chisel 2.
CAUTION:
Take care not to damage the steering shaft
thread.
EC564000
INSPECTION
Steering stem
1. Inspect:
lSteering stem 1
Bend/damage ® Replace.
STEERING

5 - 52
CHAS
Bearing and bearing race
1. Wash the bearings and bearing races
with a solvent.
2. Inspect:
lBearing
lBearing race
Pitting/damage ® Replace bearings
and bearing races as a set.
Install the bearing in the bearing races.
Spin the bearings by hand. If the bear-
ings hang up or are not smooth in their
operation in the bearing races, replace
bearings and bearing races as a set.
EC565000
ASSEMBLY AND INSTALLATION
Lower bracket
1. Install:
lBearing (lower) 1
NOTE:
Apply the lithium soap base grease on the dust
seal lip and bearing inner circumference.
2. Install:
lBearing outer race (lower)
lBearing outer race (upper)
3. Install:
lBearing (upper)
lBearing inner race 1
lBearing cover 2
NOTE:
Apply the lithium soap base grease on the
bearing and bearing cover lip.
STEERING

5 - 53
CHAS
4. Install:
lLower bracket 1
NOTE:
Apply the lithium soap base grease on the
bearing.
5. Install:
lLower ring nut 1
lRubber washer
lUpper ring nut
lSpecial washer
Tighten the ring nut using the steering
nut wrench 2
NOTE:
Install the lower ring nut with its larger cham-
fered portion a facing downward.
Refer to “STEERING HEAD INSPEC-
TION AND ADJUSTMENT” section in
the CHAPTER 3.
6. Check the steering shaft by turning it lock
to lock. If there is any binding, remove
the steering shaft assembly and inspect
the steering bearings.
T R..20 Nm (2.0 m · kg, 14 ft · lb)
7. Install:
lUpper bracket 1
lSteering stem nut 2
lStarter knob bracket 3
NOTE:
Do not tighten the steering stem nut yet.
T R..10 Nm (1.0 m · kg, 7.2 ft · lb)
8. Install:
lFront forks 1
NOTE:
lTemporarily tighten the pinch bolts (lower
bracket) 2.
lDo not tighten the pinch bolts (upper bracket)
yet.
STEERING

5 - 54
CHAS
9. Tighten:
lSteering stem nut 1
10. Install:
lCap 2
11. After tightening the nut, check the steer-
ing for smooth movement. If not, adjust
the steering by loosening the ring nut little
by little.
T R..110 Nm (11.0 m · kg, 80 ft · lb)
12. Adjust:
lFront fork top end a
Front fork top end (standard) a:
Zero mm (Zero in)
13. Tighten:
lPinch bolts (lower bracket) 1
lPinch bolts (upper bracket) 2
T R..60 Nm (6.0 m · kg, 43 ft · lb)
T R..25 Nm (2.5 m · kg, 18 ft · lb)
STEERING