There could be several potential issues causing the reduced power, excessive vibration, and decreased mileage in your Pulsar 200NS motorcycle. Here are a few possibilities to consider:
Fuel system issues: Check if there is a problem with the fuel supply, such as a clogged fuel filter, a malfunctioning fuel pump, or a dirty fuel injector. Insufficient fuel flow or a poor fuel-air mixture can lead to reduced power and mileage.
Spark plug problems: Worn-out or faulty spark plugs can cause misfiring, leading to a loss of power and increased vibrations. Consider inspecting and replacing the spark plugs if necessary.
Air intake or exhaust issues: A blocked or restricted air intake or exhaust system can restrict the engine's performance, resulting in reduced power and increased vibration. Check for any obstructions or damage to the air filter, intake manifold, or exhaust system.
Engine compression issues: Low engine compression due to worn piston rings or damaged valves can lead to decreased power output and poor fuel efficiency. A compression test can help diagnose this problem.
Ignition system problems: Faulty ignition coils, ignition timing issues, or a malfunctioning CDI (Capacitor Discharge Ignition) unit can result in weak spark and poor combustion, causing reduced power and mileage.
Mechanical wear and tear: Excessive wear in engine components, such as piston rings, valves, or the clutch system, can cause decreased power, increased vibration, and reduced efficiency. Regular maintenance and inspections are crucial to identify and address these issues.
It's essential to have a qualified mechanic or technician examine your motorcycle to diagnose the specific problem accurately. They can perform diagnostic tests, inspect the relevant components, and provide appropriate repairs or maintenance to restore your bike's performance.