Yamaha YZF-R125 Service Manual: Installing the generator

1. Install:

  • Woodruff key
  • Generator rotor
  • Washer
  • Generator rotor nut

NOTE:

  • Clean the tapered portion of the crankshaft and the generator rotor hub.
  • When installing the generator rotor, make sure the woodruff key is properly sealed in the keyway of the crankshaft.

2. Tighten:

  • Generator rotor nut "1"

NOTE:

  • While holding the generator rotor "2" with the sheave holder "3", tighten the generator rotor nut.
  • Do not allow the sheave holder to touch the projection on the generator rotor.

Installing the generator


3. Apply:

  • Sealant (onto the crankshaft position sensor/stator assembly lead grommet)

Installing the generator


4. Install:

  • Generator cover

NOTE:

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

Installing the generator


    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 ...

    Electric starter
    ...

    Other materials:

    Checking the valve seats
    The following procedure applies to all of the valves and valve seats. 1. Eliminate: Carbon deposits (from the valve face and valve seat) 2. Check: Valve seat Pitting/wear Replace the cylinder head. 3. Measure: Valve seat width C "a" Out of specification Replace the ...

    Installing the relay arm
    1. Lubricate: Spacers Bearings Oil seals Bolts (unthreaded shaft portion only) 2. Install: Bearing "1" (to the relay arm) Oil seal "2" (to the relay arm) 3. Rear shock absorber assembly 4. Relay arm 5. Connecting arm A. Left side B. Right side ...

    Storage
    Short-term Always store your motorcycle in a cool, dry place and, if necessary, protect it against dust with a porous cover. NOTICE Storing the motorcycle in a poorly ventilated room or covering it with a tarp, while it is still wet, will allow water and humidity to seep in and ...

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