GUNSON COLORTUNE.
If you want to check the mixture on your Bridgestone check out colortune!
Inside an internal combustion engine coloured flames are present not normally
Seen.With colortune fitted in place of a spark plug the flame is visible through
The glass insulator and the fuel is ignited by a spark in the colortune.
This allows the user to obtain engine efficiency by assessing the colour and
Appearance of the flame and then correcting any faults revealed.
YELLOW indicates a fuel air mixture excessive petrol or gas content RICH.
BUNSEN BLUE indicates a mixture is correctly proportioned.
Whitish BLUE indicates a mixture which has less petrol content LEAN.
The correctly proportioned mixture is 14.7 parts of air to 1 part of gas
Hydrocarbon fuel.
The motorcycle colortune kit has 14mm 12mm 10mm.
I have mine for years its fun to use etc.
Thanks.
Reed.
