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:

    Checking the crankshaft position sensor
    1. Disconnect: Crankshaft position sensor coupler (from the wire harness) 2. Check: Crankshaft position sensor resistance Out of specification  Replace the crankshaft position sensor/stator assembly. a. Connect the pocket tester ( × 100) to the crankshaft position sensor c ...

    Setting the diagnostic mode
    1. Set the main switch to "OFF" and the engine stop switch to " ". 2. Disconnect the self-diagnosis signal connector "1", and then connect the FI diagnostic tool "2" as shown. 3. Disconnect the fuel pump coupler. 4. While pressing the "MODE" button, set the main switch to "ON". NOTE: ...

    Checking the drive sprocket
    1. Check: Drive sprocket More than 1/4 tooth "a" wear Replace the drive chain sprockets as a set. Bent teeth Replace the drive chain sprockets as a set. b. Correct 1. Drive chain roller 2. Drive chain sprocket Checking the rear wheel sprocket Refer to "CHECKING AND R ...

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