Yamaha YZF-R125 Service Manual: Preparation for removal and disassembly

Yamaha YZF-R125 Service Manual / General information / Important information / Preparation for removal and disassembly

1. Before removal and disassembly, remove all dirt, mud, dust and foreign material.

Preparation for removal and disassembly


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 parts that have been "mated" through normal wear. Mated parts must always be reused or replaced as an assembly.

Preparation for removal and disassembly


4. During disassembly, clean all of the parts and place them in trays in the order of disassembly.

This will speed up assembly and allow for the correct installation of all parts.

5. Keep all parts away from any source of fire.

    Important information
    ...

    Replacement parts
    Use only genuine Yamaha parts for all replacements. Use oil and grease recommended by Yamaha for all lubrication jobs. Other brands may be similar in function and appearance, but inferior in qua ...

    Other materials:

    Checking the speed sensor
    1. Check: Speed sensor output voltage Out of specification → Replace. a. Connect the pocket tester (DC 20 V) to the speed sensor coupler (wire harness end) as shown. Positive tester probe gray "1" Negative tester probe gray/black "2" b. Set the main switch to "ON". c. ...

    Shifting
    Shifting Shift pedal Neutral position Shifting gears lets you control the amount of engine power available for starting off, accelerating, climbing hills, etc. The gear positions are shown in the illustration. TIP To shift the transmission into the neutral position, press the ...

    Coolant
    The coolant level should be checked before each ride. In addition, the coolant must be changed at the intervals specified in the periodic maintenance and lubrication chart. To check the coolant level Place the vehicle on a level surface and hold it in an upright position. TIP ...

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