Yamaha YZF-R125 Service Manual: 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 steering head pipe with a long rod "1" and hammer.
b. Remove the bearing race from the lower bracket with a floor chisel "2" and hammer.
c. Install a new dust seal and new bearing races.
| CAUTION: If the bearing races are not installed properly, the steering head pipe could be damaged. |
NOTE:
- Always replace the bearings and bearing races as a set.
- Whenever the steering head is disassembled, replace the dust seal.
4. Check:
- Upper bracket
- Lower bracket (along with the steering stem) Bends/cracks/damage →Replace.
Removing the lower bracket
1. Stand the vehicle on a level surface.
WARNINGSecurely support the vehicle so that there
is
no danger of it falling over.
2. Remove:
Upper ring nut
Rubber washer
Lower r ...
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 ...
Other materials:
Checking the front wheel
1. Check:
Front wheel axle
Roll the wheel axle on a flat surface.
Bends → Replace.
WARNINGDo not attempt to straighten a bent wheel
axle.
2. Check:
Tire
Front wheel
Damage/wear → Replace.
Refer to "CHECKING THE TIRES" on page
3-23 and "CHECKING TH ...
Checking the rear brake hose
1. Check:
Brake hoses "1"
Cracks/damage/wear
Replace.
2. Check:
Brake hose holder "2"
Loose connection Tighten the
holder bolt.
Loose or open holder Fasten
properly.
3. Hold the vehicle upright and apply the rear
brake several times.
4. Check:
Brake ho ...
Removing the front wheel (disc)
1. Stand the vehicle on a level surface.
WARNINGSecurely support the vehicle so that there
is
no danger of it falling over.
2. Elevate:
Front wheel
NOTE:
Place the vehicle on a suitable stand so that the
front wheel is elevated.
3. Remove:
Front brake caliper
NO ...