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Symptom guide

Bike troubleshooting guide

Explore possible causes and planning cost ranges from common symptoms. This guide cannot inspect or diagnose your bike.

Won't startStarts, then dies or stallsLow pick-up / powerPoor mileageWhite smoke from exhaustBlack smoke from exhaustBlue smoke (burning oil)Ticking / tapping engine noiseChain noiseBrake squeal or grindingEV range droppedEV not charging

Likely causes

Chain noise

Fix at next service

Likely causes

  1. Dry chain: needs cleaning and lubrication
  2. Chain too loose or adjusted unevenly
  3. Worn chain-sprocket kit (hooked teeth, stretched links)
  4. Chain rubbing on the guard or swingarm slider

Check yourself first

  • Clean and lube the chain every 500–700 km and after rain
  • Check slack midway along the lower run (usually 20–30 mm)
Typical repair cost
৳160 – ৳4,030

Guidance only, not a substitute for an inspection. Costs are approximate ranges for parts and labour.

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