Motorcycle clicks but won't start

Symptoms

• Clicking noise from under the seat or near the battery when pressing the starter
• Headlight and dash lights are dim or flicker
• Bike started fine recently but sat for a while
• Starter button does nothing at all on some tries

Likely causes

• CommonWeak or dead 12V batteryMotorcycle batteries are small and drain or weaken faster than car batteries, especially if the bike sits unused.
• CommonCorroded or loose battery terminalsPoor connections can cause clicking even with a decent battery since voltage drops under load.
• PossibleFaulty starter solenoid or relayA solenoid can click without engaging the starter motor even with a good battery.
• Less commonStarter motor failing internallyWorn brushes or a bad connection inside the starter can cause clicking instead of cranking.

What to do

1. Turn on the headlight; if it's very dim or goes out when you hit the starter, suspect the battery first.
2. Check and clean the battery terminals for corrosion, and make sure both connections are tight.
3. If you have a multimeter, check battery voltage; it should read around 12.5–12.8V at rest and stay above about 10V while cranking.
4. Try a jump-start from another motorcycle battery or a portable jump pack if the battery seems weak.
5. If the battery tests fine and terminals are clean but it still just clicks, the starter solenoid or starter motor itself may be at fault.
6. Have the charging system tested too, since a bike that keeps needing jumps may have an alternator/stator issue rather than just an old battery.

Tools and parts

• Multimeter (optional)
• Wrench for terminals

When to call a pro

If the battery and terminals check out fine and it still won't crank, take it to a motorcycle mechanic to test the starter and solenoid.

Safety