# Choke

> The choke enriches the fuel-air mixture (adds more fuel) to help start a cold engine.

- **Also known as:** Jigle, Starter, Choke
- **Turkish term:** Jikle
- **Category:** [Choke & Other Cables](https://motorsikletparcasi.com/en/category/choke-and-other-cables)
- **Page:** https://motorsikletparcasi.com/en/glossary/choke

Fuel does not vaporise well in a cold engine, so a richer mixture is needed to start it. On [carburettor](https://motorsikletparcasi.com/en/glossary/carburettor) motorcycles the choke is operated by a lever or cable; some scooters use an electric (automatic) choke that closes by itself as the engine warms up. On fuel-injected engines the ECU does this job.

- Leaving the choke on after warm-up increases fuel use and fouls the spark plug.
- A faulty automatic choke causes hard cold starts or a high idle when warm.

## Related terms

- [Carburettor](https://motorsikletparcasi.com/en/glossary/carburettor): A carburettor is the mechanical fuel system component that mixes petrol into the incoming air in the correct proportion.
- [Idle speed](https://motorsikletparcasi.com/en/glossary/idle-speed): Idle speed is the lowest engine speed at which the engine keeps running with the throttle closed.
- [Spark plug](https://motorsikletparcasi.com/en/glossary/spark-plug): A spark plug ignites the fuel-air mixture in the cylinder with a spark across its electrodes.

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- Source page: https://motorsikletparcasi.com/en/glossary/choke
- Last updated: 2026-10-09
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