Yamaha YZF-R125 Service Manual: Cleaning the air filter element

NOTE:

There is a check hose "1" at the bottom of the air filter case. If dust and/or water collects in this hose, clean the air filter element and air filter case.

Cleaning the air filter element


1. Remove:

  • Rider seat Refer to "GENERAL CHASSIS" on page 4-1.

2. Remove:

  • Fuel tank Refer to "FUEL TANK" on page 7-1.

3. Remove:

  • Air filter case cover "1"
  • Air filter element

Cleaning the air filter element


4. Clean:

  • Air filter element "1" Apply compressed air to the outer surface of the air filter element.

Cleaning the air filter element


5. Check:

  • Air filter element Damage Replace.

6. Install:

  • Air filter element
  • Air filter case cover (along with the gaskets)
CAUTION:

Never operate the engine without the air filter element installed. Unfiltered air will cause rapid wear of engine parts and may damage the engine. Operating the engine without the air filter element will also affect throttle body tuning, leading to poor engine performance and possible overheating.

NOTE:

Make sure the air filter element is properly installed in the air filter case.

7. Install:

  • Fuel tank Refer to "FUEL TANK" on page 7-1.
  • Rider seat Refer to "GENERAL CHASSIS" on page 4-1.
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    Checking the throttle body joint and air filter case joint
    1. Remove: Right lower side cowling Left lower side cowling Refer to "GENERAL CHASSIS" on page 4-1. 2. Check: Throttle body joint "1" Air filter case joint "2" Cracks/damage Replace ...

    Other materials:

    Sidestand
    The sidestand is located on the left side of the frame. Raise the sidestand or lower it with your foot while holding the vehicle upright. TIP The built-in sidestand switch is part of the ignition circuit cut-off system, which cuts the ignition in certain situations. WARNING The vehicl ...

    Preparation for removal and disassembly
    1. Before removal and disassembly, remove all dirt, mud, dust and foreign material. 2. Use only the proper tools and cleaning equipment. Refer to "SPECIAL TOOLS" on page 1-8. 3. When disassembling, always keep mated parts together. This includes gears, cylinders, pistons and other part ...

    Starting the engine
    In order for the ignition circuit cut-off system to enable starting, one of the following conditions must be met: The transmission is in the neutral position. The transmission is in gear with the clutch lever pulled and the sidestand up. 1. Turn the key to "ON" and make sure ...

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