Colortune Engine Carburettor Mixture Tuning Gunson See inside the engine LSR41

The classic and well known colortune kit by Gunson. This genuine Gunson item has been used for years to see the combustion and adjust the mixture etc.

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.com: AB Tools-Laser Colortune Engine Carburettor Mixture Tuning Gunson See Inside The Engine LSR41 : Automotive

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Adjusting fuel mixture using Gunson Colortune –