Yamaha YZF-R125 Service Manual: Installing the steering head
1. Lubricate:
- Upper bearing
- Lower bearing
- Bearing races
2. Install:
- Lower ring nut
- Rubber washer
- Upper ring nut
- Lock washer Refer to "CHECKING AND ADJUSTING THE STEERING HEAD" on page 3-22.
3. Install:
- Upper bracket
- Steering stem nut
NOTE:
Temporarily tighten the steering stem nut.
4. Install:
- Front fork legs Refer to "FRONT FORK" on page 4-44.
NOTE:
Temporarily tighten the upper and lower bracket pinch bolts.
5. Tighten:
- Steering stem nut
Checking the steering head
1. Wash:
Bearings
Bearing races
2. Check:
Bearings
Bearing races
Damage/pitting →Replace.
3. Replace:
Bearings
Bearing races
a. Remove the bearing races from the ste ...
Other materials:
Assembling the crankcase
1. Thoroughly clean all the gasket mating surfaces
and crankcase mating surfaces.
2. Apply:
Sealant
(onto the crankcase mating surfaces)
NOTE:
Do not allow any sealant to come into contact
with the oil gallery.
3. Install:
Right crankcase
NOTE:
Turn the shift drum segment ...
Adjusting the drive chain slack
NOTE:
The drive chain slack must be checked at the
tightest point on the chain.
CAUTION:A drive chain that is too tight will
overload
the engine and other vital parts, and one that
is too loose can skip and damage the swingarm
or cause an accident. Therefore, keep
the drive ...
Checking the stator coil
1. Disconnect:
Stator coil coupler
(from the wire harness)
2. Check:
Stator coil resistance
Out of specification → Replace the
crankshaft
position sensor/stator assembly.
a. Connect the pocket tester ( ×
1) to the stator
coil coupler as shown.
b. Measure the sta ...