The Gunson Colortune kit
allows you to see into the combustion chamber of
the engine and to adjust the mixture simply by
the colour you see down. It fits most standard
petrol engines.
The Gunson Colortune is a unique air/fuel mixture setting
device and a detector of other mixture
related problems. It is a sparking plug,
which runs the engine like any normal
sparking plug, but because it has a
glass insulator, it allows the colour of the
combustion flame inside the cylinder to
show through it, thereby indicating the
strength of the mixture or other faults.
For Fault finding with Colortune Please download
the
Colortune Fuel System Fault Diagnostic Chart