While driving long distances sometimes my bike has problems when accelerating.

It doesn't go above the speed of 40kmh - the speedo stuck at 4(max 12) even after pulling full throttle. I have to drop down the gears to maintain the pickup.

I have recently had it serviced and the guy in the service center changed the clutch plate and timing chain but still I have the same problem.

Please help me to Identify the possible reasons for this problem.

  • Welcome to Motor Vehicle Maintenance & Repair! Is this actually a "Pulsar" scooter? What is the year of it? What is the mileage? Have you done any other maintenance on it? If so, what and when? – Pᴀᴜʟsᴛᴇʀ2 Jan 20 '19 at 16:04
  • This may be a vacuum leak. Clean carburetor and re-install – manu May 29 '19 at 7:32

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