Why can't the motorcycle's RPM exceed 6,000?

1 Answers
Doris
07/30/25 9:07am
When a motorcycle's RPM cannot exceed 6,000, it is usually due to the engine's idle speed being set too high. Below are the reasons and solutions for this issue: Poor fuel supply from the carburetor: This causes the engine to lack power. Solution: Clean the carburetor, replace the fuel filter, and clean the fuel tank. Air intake system leakage: This results in an overly lean air-fuel mixture. Solution: Ensure the air intake system is properly sealed. Engine oil viscosity too high or excessive oil: This increases the engine's rotational resistance. Solution: Change the engine oil and fill it to the appropriate level (position 3). Ignition timing too late: Solution: Adjust the ignition timing.
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