Yamaha YZF-R125 Service Manual: Checking the cooling system

1. Remove:

  • Side covers
  • Upper side cowlings Refer to "GENERAL CHASSIS" on page 4-1.

2. Check:

  • Radiator "1"
  • Radiator inlet hose "2"
  • Radiator outlet hose "3"

Coolant reservoir hose "4"

Water pump breather hose "5" Cracks/damage → Replace.

Refer to "RADIATOR" on page 6-1.

Checking the cooling system


3. Install:

  • Upper side cowlings
  • Side covers Refer to "GENERAL CHASSIS" on page 4-1.
    Checking the coolant level
    1. Stand the vehicle on a level surface. NOTE: Place the vehicle on a suitable stand. Make sure the vehicle is upright. 2. Check: Coolant level The coolant level should be between the max ...

    Changing the coolant
    1. Remove: Lower side cowlings Refer to "GENERAL CHASSIS" on page 4-1. 2. Remove: Radiator cap "1" WARNINGA hot radiator is under pressure. Therefore, do not remove t ...

    Other materials:

    Installing the rear shock absorber assembly
    1. Install: Rear shock absorber assembly Relay arm "1" NOTE: Install the relay arm as shown in the illustration. 2. Tighten: Rear shock absorber assembly upper nut Relay arm nut Rear shock absorber assembly lower nut 3. Install: Connecting arms NOTE: When ins ...

    Disassembling the front fork legs
    The following procedure applies to both of the front fork legs. 1. Remove: Rubber cap Clip "1" Front fork cap "2" (with O-ring) Fork spring NOTE: Push the front fork cap in the direction of the arrow shown in the illustration to remove the clip. 2. Drain: Fork oil NOTE ...

    Genuine Yamaha Accessories
    Choosing accessories for your vehicle is an important decision. Genuine Yamaha accessories, which are available only from a Yamaha dealer, have been designed, tested, and approved by Yamaha for use on your vehicle. Many companies with no connection to Yamaha manufacture parts and access ...

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