Gunson G4074 Colortune Single Plug Kit 14mm

Features and Benefits:

• The Tune-up plug for Petrol/LPG 2 & 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 colour.
• Fits most petrol engines in standard form with additional adaptors available for vehicles with alternative sized spark plugs 18mm- G4055E 14mm - Long Reach G4055D 14mm - Tapered Seat G4055C 12mm - G4055B10mm - G4055A
• The complete Colortune kit is also available with the following adaptors G4171 with 12mm Colortune Plug G4170 with 10mm Colortune Plug
• Kit includes: 14mm Short reach plug | Hexagonal ad
• Colortune will fit most vehicles
• Kit complete with instructions
• Extra adaptor sizes available separately