Yamaha YZF-R125 Service Manual: Checking the primary drive gear

Yamaha YZF-R125 Service Manual / Engine / Clutch / Checking the primary drive gear

1. Remove:

  • Primary drive gear Refer to "BALANCER GEAR" on page 5-53.

2. Check:

  • Primary drive gear Damage/wear  Replace the
    primary drive gear and clutch housing as a set.

    Excessive noise during operation Replace
    the primary drive gear and clutch housing as a set

3. Install:

  • Primary drive gear Refer to "BALANCER GEAR" on page 5-53.
    Checking the clutch boss
    1. Check: Clutch boss splines Damage/pitting/wear Replace the clutch boss. NOTE: Pitting on the clutch boss splines will cause erratic clutch operation. Checking the pressure plate 1. C ...

    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 ...

    Other materials:

    Multi-function display
    Multi-function display Multi-function display "RESET/SELECT" button WARNING Be sure to stop the vehicle before making any setting changes to the multi-function display. Changing settings while riding can distract the operator and increase the risk of an accident. The multi- ...

    Cast wheels
    To maximize the performance, durability, and safe operation of your vehicle, note the following points regarding the specified wheels. The wheel rims should be checked for cracks, bends or warpage before each ride. If any damage is found, have a Yamaha dealer replace the wheel. ...

    Unstable handling
    Handlebars - Bent or improperly installed right handlebar - Bent or improperly installed left handlebar 1. Steering head components - Improperly installed upper bracket - Improperly installed lower bracket (improperly tightened ring nut) - Bent steering stem - Damaged ball bearing or bearing ...

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