Best current price£77.15from B&Q
Shopping.co.uk recommended and popular offers
B&Q£77.15Visit shop B&Q - Colortune Engine Carburettor Mixture Tuning Gunson See Inside The Engine Lsr41
Visit shop2 offers from £77.15
View price history by clicking the chart icon.
The Gunson Colortune kit is designed for automotive enthusiasts and classic car owners who need to achieve precise carburettor mixture adjustments by visually monitoring internal combustion. Its primary benefit is the ability to diagnose fuel mixture issues in real-time, leading to optimized performance, better fuel economy, and improved acceleration. The main caveat is that it is strictly limited to engines equipped with 14mm spark plug ports, requiring the removal of standard plugs to perform the tuning process.
| Model Part Number | LSR41 |
|---|---|
| Brand | AB Tools |
The Colortune is primarily designed for carburetted engines; while it can physically fit a 14mm port, it is intended to help tune mixture adjustments found on carburettors.
No, the Colortune plug is a diagnostic tool only and should be removed and replaced with a standard spark plug after tuning is complete.
A yellow flame indicates an overly rich fuel mixture, meaning there is too much fuel relative to the amount of air in the combustion chamber.
The plug is designed for testing purposes including idling and light revving, but it should not be subjected to prolonged high-speed load testing.
If your motorcycle engine utilizes 14mm spark plugs, the kit will fit; however, ensure you have enough clearance to attach the viewerscope.
Ensure the extension HT lead is positioned correctly and use the two-part viewerscope to block out ambient light from the engine bay.
Use the included cleaning brush to gently clear the soot from the glass surface after the plug has cooled down.
Check that the spark plug cable is seated correctly on the Colortune plug and ensure the thread is properly tightened to maintain compression.
Compatibility is focused on the spark plug port diameter; the LSR41 is designed strictly for 14mm spark plug holes. Before use, ensure the engine is cool enough to safely remove a spark plug to prevent thread damage.
To maintain the kit:
