Yamaha YZF-R125 Service Manual: Troubleshooting

The battery is not being charged.

NOTE:

  • Before troubleshooting, remove the following part(s):

1. Rider seat

2. Left side panel

3. Left lower side cowling

Troubleshooting


    Circuit diagram
    1. AC magneto 3. Rectifier/regulator 4. Main fuse 9. Battery ...

    Lighting system
    ...

    Other materials:

    Checking the spark plug cap
    1. Check: Spark plug cap resistance Out of specification Replace. a. Remove the spark plug cap from the spark plug lead. b. Connect the pocket tester ( × 1k) to the spark plug cap as shown. c. Measure the spark plug cap resistance. ...

    Removing the throttle body
    1. Extract the fuel in the fuel tank through the fuel tank filler hole with a pump. 2. Disconnect: Fuel hose WARNINGCover the fuel hose connections with a cloth when disconnecting them. Residual pressure in the fuel lines could cause fuel to spurt out when removing the h ...

    Assembling the crankcase
    1. Thoroughly clean all the gasket mating surfaces and crankcase mating surfaces. 2. Apply: Sealant (onto the crankcase mating surfaces) NOTE: Do not allow any sealant to come into contact with the oil gallery. 3. Install: Right crankcase NOTE: Turn the shift drum segment ...

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