Yamaha YZF-R125 Service Manual: Checking the fuses

The following procedure applies to all of the fuses.

CAUTION:

To avoid a short circuit, always turn the main switch to "OFF" when checking or replacing a fuse.

1. Remove:

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

2. Check:

  • Fuse

a. Connect the pocket tester to the fuse and check the continuity.

Set the pocket tester selector to " × 1".


b. If the pocket tester indicates " ", replace the fuse.

3. Replace:

  • Blown fuse

a. Set the main switch to "OFF".

b. Install a new fuse of the correct amperage rating.

c. Set on the switches to verify if the electrical circuit is operational.

d. If the fuse immediately blows again, check the electrical circuit


WARNING

Never use a fuse with an amperage rating other than that specified. Improvising or using a fuse with the wrong amperage rating may cause extensive damage to the electrical system, cause the lighting and ignition systems to malfunction and could possibly cause a fire.

4. Install:

  • Rider seat Refer to "GENERAL CHASSIS" on page 4-1.
    Checking the condition of the bulb sockets
    The following procedure applies to all of the bulb sockets. 1. Check: Bulb socket (for continuity) (with the pocket tester) No continuity Replace. NOTE: Check each bulb socket for continui ...

    Checking and charging the battery
    WARNINGBatteries generate explosive hydrogen gas and contain electrolyte which is made of poisonous and highly caustic sulfuric acid. Therefore, always follow these preventive mea ...

    Other materials:

    Installing the front fork legs
    The following procedure applies to both of the front fork legs. 1. Install: Front fork leg Temporarily tighten the upper and lower bracket pinch bolts. NOTE: Make sure the inner tube end position "a" is 24.5 mm (0.96 in) from the top of the upper bracket. 2. Tighten: Lower br ...

    Checking the front brake disc
    1. Remove: Front wheel Refer to "FRONT WHEEL" on page 4-6. 2. Check: Brake disc Damage/galling Replace. 3. Measure: Brake disc deflection Out of specification Correct the brake disc deflection or replace the brake disc. a. Place the vehicle on a suitable stand ...

    Cleaning and lubricating the drive chain
    The drive chain must be cleaned and lubricated at the intervals specified in the periodic maintenance and lubrication chart, otherwise it will quickly wear out, especially when riding in dusty or wet areas. Service the drive chain as follows. NOTICE The drive chain must be lubricated ...

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