Gunson Colortune 14 mm Kit Colortune Spark Plug Carburettor Mixture tool

G4074 - Gunson Colortune 14mm Fuel / Air Mixture Tester Kit. The original tuning kit for understanding and adjusting the fuel/air mixture of your classic car. Allows you to see the combustion and adjust the mixtureBased on the colour shown on the guide. A download of the Fuel System Diagnostic Chart can be found here. Suitable for Petrol and LPG for both 2 and 4 Stroke Engines with Single, Twin...