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Why does my Yamaha ybr 125 got smoke when running?

1. Excessive Oil Consumption:

- Worn or damaged piston rings

- Worn or damaged valve guides

- Worn or damaged cylinder

2. Coolant Leaks:

- Leaking cylinder head gasket

- Leaking engine block seals

3. Bad Fuel Mixture:

- Rich fuel mixture

4. Engine Overheating:

- Faulty thermostat

- Coolant leaks

- Blocked or damaged radiator

5. Ignition Issues:

- Faulty spark plugs

- Worn or damaged spark plug wires

- Faulty ignition coil

6. Oil or Fuel in Air Filter:

7. Other Mechanical Issues:

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