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:

    Measuring the compression pressure
    NOTE: Insufficient compression pressure will result in a loss of performance. 1. Measure: Valve clearance Out of specification →Adjust. Refer to "ADJUSTING THE VALVE CLEARANCE" on page 3-3. 2. Start the engine, warm it up for several minutes, and then turn it off. 3. Remove: ...

    General maintenance and lubrication chart
    TIP The air filter needs more frequent service if you are riding in unusually wet or dusty areas. Hydraulic brake service Regularly check and, if necessary, correct the brake fluid level. Every two years change the brake fluid. Replace the brake hoses every four ye ...

    Checking the timing chain tensioner
    1. Check: Timing chain tensioner Cracks/damage/rough movement Replace. a. Lightly press the timing chain tensioner rod into the timing chain tensioner housing by hand. NOTE: While pressing the timing chain tensioner rod, wind it clockwise with a thin screwdriver "1" until it stops. b. ...

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