Yamaha YZF-R125 Service Manual: Checking the starter clutch

1. Check:

  • Starter clutch rollers "1"
  • Starter clutch spring caps "2"
  • Starter clutch springs "3"

Damage/wear Replace the starter
clutch assembly.

Checking the starter clutch


2. Check:

  • Starter clutch idle gear
  • Starter clutch gear Burrs/chips/roughness/wear Replace the defective part(s).

3. Check:

  • Starter clutch gear contacting surfaces Damage/pitting/wear Replace the starter clutch gear.

4. Check:

  • Starter clutch operation

a. Install the starter clutch gear "1" onto the starter clutch and hold the generator rotor.

b. When turning the starter clutch gear clockwise "A", the starter clutch and the starter clutch gear should engage, otherwise the starter clutch is faulty and must be replaced.

c. When turning the starter clutch gear counterclockwise "B", it should turn freely, otherwise the starter clutch is faulty and must be replaced.


    Removing the starter clutch
    1. Remove: Starter clutch bolts "1" NOTE: While holding the generator rotor "2" with the sheave holder "3", remove the starter clutch bolts. Do not allow the sheave holder to touch th ...

    Installing the starter clutch
    1. Install: Starter clutch assembly Starter clutch bolts "1" NOTE: While holding the generator rotor "2" with the sheave holder "3", tighten the starter clutch bolts. Do not allow t ...

    Other materials:

    Identification
    Vehicle identification number The vehicle identification number "1" is stamped into the right side of the steering head pipe. Model label The model label "1" is affixed to the frame. This information will be needed to order spare parts. ...

    Adjusting the engine idling speed
    NOTE: Prior to adjusting the engine idling speed, the air filter element should be clean, and the engine should have adequate compression. 1. Start the engine and let it warm up for several minutes. 2. Remove: Rider seat Refer to "GENERAL CHASSIS" on page 4-1. 3. Lift the fuel tank. ...

    Owner's tool kit
    Owner's tool kit Owner's tool kit Engine oil drain attachment The owner's tool kit is located under the rider seat. The service information included in this manual and the tools provided in the owner's tool kit are intended to assist you in the performance of preventive maint ...

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