Gunson Colortune See Through Spark Plug Kit.
The Tune-up plug for Petrol or LPG, 2 and 4 stroke engines with single, twin or multiple carburettors or fuel injection systems.
The original and best tool for seeing what's happening inside the combustion chamber of the petrol engine.
It allows you to see the combustion and to adjust the mixture by color.
Fits most petrol engines in standard form with additional adapters available for vehicles with alternative sized spark plugs.
- Kit includes: 14 mm Short reach plug and Hexagonal adapter
- Colortune will fit most vehicles
- Kit complete with instructions in English
- Extra adapter sizes available separately
Available in the following basic sizes:
- 10 mm - Available from our Stock
- 12 mm - Sold out at the moment !
- 14 mm - Available from our Stock