Yamaha YZF-R125 Service Manual: Checking the radiator

1. Check:

Radiator fins obstruction clean.


Apply compressed air to the rear of the radiator.

Damage  repair or replace.


NOTE:

Straighten any flattened fins with a thin, flat-head screwdriver.

Checking the radiator


2. Check:

  • Radiator hoses Cracks/damage Replace.

3. Measure:

  • Radiator cap opening pressure Below the specified pressure
    Replace the radiator cap.

a. Install the radiator cap tester "1" and radiator cap tester adapter "2" to the radiator cap "3".


Checking the radiator


b. Apply the specified pressure for ten seconds and make sure there is no drop in pressure.

4. Check:

  • Radiator fan Damage Replace.


    Malfunction Check and repair.


    Refer to "COOLING SYSTEM" on page 8-25.

    Radiator
    ...

    Installing the radiator
    1. Fill: Cooling system (with the specified amount of the recommended coolant) Refer to "CHANGING THE COOLANT" on page 3-15. 2. Check: Cooling system Leaks Repair or replace any ...

    Other materials:

    Installing the front wheel (disc)
    1. Install: Front brake disc NOTE: Be sure to install the front brake disc with the arrow mark "a" on the disc facing out. Tighten the brake disc bolts in stages and in a crisscross pattern. 2. Check: Front brake disc Refer to "CHECKING THE FRONT BRAKE DISC" on page 4 ...

    Supporting the motorcycle
    Since this model is not equipped with a centerstand, follow these precautions when removing the front and rear wheel or performing other maintenance requiring the motorcycle to stand upright. Check that the motorcycle is in a stable and level position before starting any maintenance. A ...

    Handlebar switches
    Left Left 1. Pass switch "PASS" 2. Dimmer switch "/" 3. Turn signal switch "/" 4. Horn switch"" Right Right Engine stop switch "/" Start switch"" Pass switch "PASS" Press this switch to flash the headlight. Dimmer switch "/" Set this switch to"" for the high beam an ...

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