Yamaha YZF-R125 Service Manual: Checking the throttle body joint and air filter case joint

Yamaha YZF-R125 Service Manual / Periodic checks and adjustments / Engine / 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.

Checking the throttle body joint and air filter case joint


3. Install:

  • Right lower side cowling
  • Left lower side cowling Refer to "GENERAL CHASSIS" on page 4-1.
    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. 1. Remove: Rider seat ...

    Checking the fuel line
    1. Remove: Left side panel Refer to "GENERAL CHASSIS" on page 4-1. 2. Lift the fuel tank. (Do not disconnect the fuel hose, drain hose 3. Check: Fuel hose "1" Cracks/damage → Replac ...

    Other materials:

    Checking the horn
    1. Check: Horn resistance Out of specification Replace. a. Disconnect the horn connectors from the horn terminals. b. Connect the pocket tester ( × 1) to the horn terminals. Positive tester probe horn terminal "1" Negative tester probe horn terminal "2" c. Measure t ...

    Faulty lighting or signaling system
    Headlight does not come on - Wrong headlight bulb - Too many electrical accessories - Hard charging - Incorrect connection - Improperly grounded circuit - Poor contacts (main or light switch) - Burnt-out headlight bulb Headlight bulb burnt out - Wrong headlight bulb - Faulty battery - Fau ...

    Checking the timing chain tensioner
    1. Check: Timing chain tensioner Cracks/damage/rough movement Replace. a. Lightly press the timing chain tensioner rod into the timing chain tensioner housing by hand. NOTE: While pressing the timing chain tensioner rod, wind it clockwise with a thin screwdriver "1" until it stops. b. ...

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