Yamaha YZF-R125 Service Manual: Installing the bearing retainer

Yamaha YZF-R125 Service Manual / Engine / Crankcase / Installing the bearing retainer

1. Install:

  • Bearing retainer "1"

NOTE:

  • Install the bearing retainer "1" with its "OUT" mark "a" facing outward.
  • Apply locking agent (LOCTITE) to the threads of the bearing retainer bolt.

Installing the bearing retainer


    Checking the bearings and oil seal
    1. Check: Bearings Clean and lubricate the bearings, and then rotate the inner race with your finger. Rough movement Replace. Oil seal Damage/wear Replace. ...

    Assembling the crankcase
    1. Thoroughly clean all the gasket mating surfaces and crankcase mating surfaces. 2. Apply: Sealant (onto the crankcase mating surfaces) NOTE: Do not allow any sealant to come into conta ...

    Other materials:

    Adjusting the drive chain slack
    NOTE: The drive chain slack must be checked at the tightest point on the chain. CAUTION:A drive chain that is too tight will overload the engine and other vital parts, and one that is too loose can skip and damage the swingarm or cause an accident. Therefore, keep the drive ...

    Checking the speed sensor
    1. Check: Speed sensor output voltage Out of specification → Replace. a. Connect the pocket tester (DC 20 V) to the speed sensor coupler (wire harness end) as shown. Positive tester probe gray "1" Negative tester probe gray/black "2" b. Set the main switch to "ON". c. ...

    Checking the turn signal relay
    1. Check: Turn signal relay input voltage Out of specification →The wiring circuit from the main switch to the turn signal relay coupler is faulty and must be repaired. a. Connect the pocket tester (DC 20 V) to the turn signal relay terminal as shown. - Positive tester probe  b ...

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