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 ...

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    Installing the exhaust assembly
    1. Install: Exhaust assembly "1" Exhaust pipe nuts "2" Exhaust assembly bolts "3" "4" NOTE: Do not fully tighten the nuts and bolts. 2. Tighten: Exhaust pipe nuts "2" Exhaust assembly bolt "4" Exhaust assembly bolt "3" ...

    Checking and lubricating the sidestand
    Checking and lubricating the sidestand The operation of the sidestand should be checked before each ride, and the sidestand pivot and metal-to-metal contact surfaces should be lubricated if necessary. WARNING If the sidestand does not move up and down smoothly, have a Yamaha deal ...

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