Precision tuning of your motorcycle

With the Gunson Colortune spark plug tester 10mm, you can precisely adjust the air-fuel mixture of your motorcycle. This results in more efficient combustion and improved engine performance.

Unique viewing window for direct feedback

The spark plug is equipped with a glass insulator that makes the combustion flame visible. This allows you to observe the color of the flame and adjust the mixture accordingly:

• Yellow flame: mixture too rich
• Blue-white flame: mixture too lean
• Bunsen blue flame: optimal mixture

Complete and user-friendly

The kit contains everything you need for easy adjustment:

• 10mm Colortune spark plug
• Hexagonal adapter
• Angled cleaning brush
• Instructions

Suitable for various motorcycles

Specially designed for motorcycles with a 10mm spark plug, making it a versatile tool for different models.

Maintains compression ratio

Thanks to the low-volume design, the engine's compression ratio is maintained, ensuring better combustion of the mixture.

Practical viewer with adjustable mirror

The included viewer with adjustable mirror allows you to observe the flame even when access to the engine is limited.

Easy installation and use

The Colortune spark plug tester is easy to install and use, allowing you to tune your engine quickly and effectively.

Reliable quality from Gunson

Gunson is known for its high-quality tools for engine maintenance, and the Colortune spark plug tester is no exception.