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:

    Main switch/steering lock
    Main switch/steering lock The main switch/steering lock controls the ignition and lighting systems, and is used to lock the steering. The various positions are described below. ON All electrical circuits are supplied with power, the meter lighting, taillight, license plate light and ...

    Checking the rectifier/regulator
    1. Check: Rectifier/regulator output voltage Out of specification → Replace the rectifier/ regulator. a. Set the engine tachometer to the spark plug lead. b. Connect the pocket tester (DC 20 V) to the rectifier/regulator coupler as shown. Positive tester probe red "1" Negat ...

    Adjusting the clutch lever free play
    Adjusting the clutch lever free play Clutch lever free play adjusting bolt Clutch lever free play The clutch lever free play should measure 10.0-15.0 mm (0.39-0.59 in) as shown. Periodically check the clutch lever free play and, if necessary, adjust it as follows. Slide the ...

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