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 start Starts, then dies or stalls Low pick-up / power Poor mileage White smoke from exhaust Black smoke from exhaust Blue smoke (burning oil)Ticking / tapping engine noise Chain noise Brake squeal or grinding EV range dropped EV not charging

Likely causes

Poor mileage

Fix at next service

Likely causes

Low tyre pressure
Dirty air filter or overdue service
Stop-go traffic and riding in low gears
Dragging brakes or a tight chain

Check yourself first

Measure real mileage with a full-tank to full-tank fill in My Garage
Set tyre pressures and check the chain slack (20–30 mm on most bikes)
Ride in the highest gear that keeps the engine smooth

Typical repair cost

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Local repair cost data is unavailable. Ask a local mechanic for a written estimate.

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

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