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 shift forks and shift drum assembly
    1. Install: Shift fork-L "1" Shift fork-C "2" Shift fork-R "3" Shift drum assembly "4" Springs Shift fork guide bar "5" NOTE: The embossed marks on the shift forks should face towards the right side of the engine and be in the following sequence: "R", "C", "L". 2. Check: Tr ...

    Storage
    Short-term Always store your motorcycle in a cool, dry place and, if necessary, protect it against dust with a porous cover. NOTICE Storing the motorcycle in a poorly ventilated room or covering it with a tarp, while it is still wet, will allow water and humidity to seep in and ...

    Cable routing
    Front brake light switch lead Right handlebar switch lead Throttle cable Main switch Clutch cable Clutch switch lead Left handlebar switch lead Sub-wire harness Horn Speed sensor lead Front brake hose Main switch lead Left headlight assembly lead Right headlight asse ...

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