Yamaha YZF-R125 Service Manual: Installing the clutch

Yamaha YZF-R125 Service Manual / Engine / Clutch / Installing the clutch

1. Install:

  • Conical spring washer "1"

NOTE:

Install the conical spring washer as shown in the illustration.

Installing the clutch


2. Install:

  • Clutch housing
  • Thrust washer "1"

NOTE:

Be sure to install the thrust washer so that its sharp edge "a" is facing away from the clutch boss.

Installing the clutch


3. Install:

  • Clutch boss "1"
  • Lock washer "2"

  • Clutch boss nut

NOTE:

  • Lubricate the clutch boss nut threads and lock washer mating surfaces with engine oil.
  • Align the notch "a" in the lock washer with a rib "b" on the clutch boss.

Installing the clutch


4. Tighten:

  • Clutch boss nut "1"

NOTE:

While holding the clutch boss "2" with the universal clutch holder "3", tighten the clutch boss nut.


Installing the clutch


5. Bend the lock washer tab along a flat side of the nut.

6. Lubricate:

  • Friction plates
  • Clutch plates (with the recommended lubricant)

7. Install:

  • Clutch damper spring seat "1"
  • Clutch damper spring "2"
  • Friction plate 2
  • Clutch plates
  • Friction plates 3
  • Friction plate 1

NOTE:

  • Install the clutch damper spring seat and clutch damper spring as shown in the illustration.
  • First, install a friction plate and then alternate between a clutch plate and a friction plate.

Installing the clutch


8. Install:

  • Pressure plate
  • Clutch springs
  • Clutch spring bolts "1"

NOTE:

Tighten the clutch spring bolts in stages and in a crisscross pattern.

Installing the clutch


9. Adjust:

  • Clutch mechanism free play

a. Check that projection "a" on the clutch push lever "1" aligns with mark "b" shown on the crankcase in the illustration by pushing the clutch push lever manually in direction "c" until it stops.

Installing the clutch


b. If projection "a" is not aligned with mark "b", align them as follows:

  • Loosen the locknut "2".
  • With the clutch push lever fully pushed in direction "c", turn the short clutch push rod "3" in or out until projection "a" aligns with mark "b".
  • Hold the short clutch push rod to prevent it from moving and then tighten the locknut to specification.

Installing the clutch


10.Install:

  • Oil seal "1"

Installing the clutch


11.Install:

  • Clutch cover

NOTE:

Tighten the clutch cover bolts in the proper tightening sequence as shown.

Installing the clutch


12.Adjust:

  • Clutch cable free play Refer to "ADJUSTING THE CLUTCH CABLE FREE PLAY" on page 3-12.
    Checking the primary driven gear
    1. Check: Primary driven gear "1" Damage/wear Replace the primary drive gear and clutch housing as a set. Excessive noise during operation  Replace the primary drive gear and ...

    Oil pump
    ...

    Other materials:

    Removing the rear brake caliper
    NOTE: Before disassembling the brake caliper, drain the brake fluid from the entire brake system. 1. Remove: Union bolt "1" Copper washers "2" Brake hose "3" NOTE: Put the end of the brake hose into a container and pump out the brake fluid carefully. ...

    Disassembling the front wheel
    1. Remove: Oil seal Wheel bearings a. Clean the surface of the front wheel hub. b. Remove the oil seal "1" with a flat-head screwdriver. NOTE: To prevent damaging the wheel, place a rag "2" between the screwdriver and the wheel surface. c. Remove the wheel bearings "3" with a ge ...

    Introduction
    WARNINGDisc brake components rarely require disassembly. Therefore, always follow these preventive measures: Never disassemble brake components unless absolutely necessary. If any connection on the hydraulic brake system is disconnected, the entire brake sy ...

    2025 Copyright www.yam-r125.net |