Yamaha YZF-R125 Service Manual: Checking the cylinder head breather hose

Yamaha YZF-R125 Service Manual / Periodic checks and adjustments / Engine / Checking the cylinder head breather hose

1. Remove:

  • Left side panel Refer to "GENERAL CHASSIS" on page 4-1.

2. Check:

  • Cylinder head breather hose "1" Cracks/damage → Replace.

    Loose connection → Connect properly.

CAUTION:

Make sure the cylinder head breather hose is routed correctly.

Checking the cylinder head breather hose


3. Install:

  • Left side panel Refer to "GENERAL CHASSIS" on page 4-1.
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    Checking the exhaust system
    1. Check: Exhaust assembly "1" Cracks/damage → Replace. Exhaust pipe gasket "2" Exhaust gas leaks → Replace. 2. Check: Tightening torques of the exhaust pipe nuts "3" an ...

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    Bleeding the hydraulic brake system
    WARNINGBleed the hydraulic brake system whenever: the system is disassembled. a brake hose is loosened, disconnected or replaced. the brake fluid level is very low. brake operation is faulty. NOTE: Be careful not to spill any brake fluid or allow th ...

    Checking the valves and valve guides
    The following procedure applies to all of the valves and valve guides. 1. Measure: Valve-stem-to-valve-guide clearance Out of specification Replace the valve guide. Valve-stem-to-valve-guide clearance = Valve guide inside diameter "a" - Valve stem diameter "b" 2. Replace: ...

    Important manual information
    Particularly important information is distinguished in this manual by the following notations: This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. WARNING ...

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