Gunson Colortune Single Plug Tuning kit. 14mm Spark Plug G4074

Gunson Colortune Single Plug Tuning kit. 14mm Spark Plug  G4074

To Suit Vehicles with 14mm Sparkplug 

Ingenious kit which allows you to see the colour of the combustion in the cylinder head chamber by virtue of a glass topped spark plug.

This takes the guess work out of mixture adjustment as different fuel/air mixtures burn with different colours.

A full chart and instructions make this an easy to use kit.

One of the few kits that earns its cost back by saving fuel and money in a short time .

The Gunson Colortune plug kit is a simple and effective way to tune petrol and LPG 2-stroke and 4-stroke engines.

It is easy to use and works on the principle that the combustion flame burns a particular colour depending on the fuel mixture.

The Colortune is a spark plug with a glass insulator viewing window, allowing the flame to be seen. The colour of the flame inside the cylinder indicates the air-fuel ratio: yellow shows a rich mixture, bluish-white a weak mixture, and a Bunsen blue flame a balanced mixture.

By adjusting the mixture screw to achieve the correct flame colour, the engine can be tuned for optimal fuel economy and performance.

The kit also includes a view scope with an adjustable mirror, enabling the flame to be seen where engine access is restricted. It fits most petrol engines, with additional adaptors available for vehicles with other spark plug sizes.

• Colortune features a viewing window so the air/fuel ratio can be adjusted according to flame colour. Ideal for simple & effective engine tuning.
• Colortune will fit most vehicles fitted with M14 threaded plugs.
• Kit includes: 14mm short reach plug, hexagonal adaptor, angled cleaning brush & full instructions.
• Extra adaptor sizes available separately, please see Gunson Part Nos. G4055D (14mm long reach), G4055B (12mm).

Gunson's Colortune Single Plug Tuning kit. 14mm Spark plug  MSA1002  G4074

Gunson's Colortune G4074, carburettor tuning kit. G4074