Yamaha YZF-R125 Service Manual: Checking the steering head

Yamaha YZF-R125 Service Manual / Chassis / Steering head / 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.

Checking the steering head

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:

Supporting the motorcycle
Since this model is not equipped with a centerstand, follow these precautions when removing the front and rear wheel or performing other maintenance requiring the motorcycle to stand upright. Check that the motorcycle is in a stable and level position before starting any maintenance. A ...

VInstalling the handlebars
1. Stand the vehicle on a level surface. WARNINGSecurely support the vehicle so that there is no danger of it falling over. 2. Install: Front brake master cylinder "1" Front brake master cylinder holder "2" Front brake light switch NOTE: Install the brake master cyl ...

Removing the rear 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: Rear wheel NOTE: Place the vehicle on a suitable stand so that the rear wheel is elevated. 3. Remove: Rear brake caliper NOTE: ...