Gunson Motorcycle Colour Tune - 10mm GUNG4172

The Gunson Motorcycle Colour Tune is ideal for anyone from a home mechanic to a professional.Take The Guesswork Out Of Engine TuningAdjust Fuel / Air Mixture By ColourSupplied With Periscope For Recessed PlugsThe Gunson Motorcycle Colour Tune is the perfect for anyone, whether you're a professional or a home mechanic. Colour Tune is so simple to use that anyone can use it. The basic principle behind Colour Tune is that certain fuel mixtures burn with a certain colour telling you the richness of the air/fuel mixture. For example a Yellow flame indicates a rich mixture, while a Blueish White flame indicates a weaker mixture. The Colour tune kit is supplied with a clear spark plug allowing you to look into the combustion chamber while the engine is firing, allowing you to check the colour of flame. Colour Tune is supplied with comprehensive instructions which includes an effective flame colour diagnosis section, so you can compare and adjust the fuel/air mixture to acquire the correct colour and mixture.Available in two plug sizes 10 and 12mm