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...

The special transparent spark plug replaces the normal plug and allows you to view the combustion in the engine. A blue colour is good and a yellow/orange colour is bad, wasting fuel. (Full instructions included)

Fits vehicles with a 14mm spark plug, but adapters are available for other sizes of spark plug.

Extension HT lead included to provide a better view.

Includes;

Colortune special sparkplug.
Solid cross section gas washer.
Extension HT lead to fit most suppressor caps. (Clip or thread)
Cleaning brush.
Viewerscope (two parts)
Instructions.

Allows mixture tuning by colour.

The correct mixture improves performance, produces more miles to the gallon and better acceleration.

Very simple to use, no more difficult than changing a spark plug.