GUNSONS COLORTUNE 14MM SPARK PLUG DIAGNOSTIC TUNING AID [MSA1002]

PRODUCT OVERVIEW

Gunson Colortune 14mm spark plug tuning kit, a clever diagnostic tool that allows you to see the combustion colour inside the cylinder head chamber while the engine is running.

By using a glass-topped spark plug, the Colortune helps take the guesswork out of fuel mixture adjustment. Different air / fuel mixtures burn with different colours, allowing you to visually tune the mixture rather than relying only on feel, smell or plug reading after the fact.

A great tool for tuning carburettor-fed Minis, Mokes and other classic vehicles where accurate mixture adjustment makes a noticeable difference to starting, idle quality, throttle response and overall drivability.

SPECIFICATIONS

• Brand: Gunson
• Product type: Colortune spark plug tuning kit
• Spark plug thread size: 14mm
• Operation: Glass-topped spark plug for viewing combustion colour
• Use: Fuel / air mixture adjustment
• Application: Carburettor tuning and diagnostic work
• Gunson part number: [G4074]

WHY USE A COLORTUNE?

Mixture tuning can be difficult when you are working by ear alone. The Gunson Colortune lets you see what is happening inside the combustion chamber, helping identify whether the mixture is too rich, too lean or close to correct.

This makes it especially useful when setting up carburettors, diagnosing poor running, or fine tuning a classic Mini or Moke for smoother and more reliable performance.

KIT INFORMATION

Supplied with a colour chart and instructions, making it easy to use even if you have not used one before.