Evening all 
Does anyone have any experience of using the Gunson ColourTune kit for setting fuel/air mixture? I know they have been around a long time as I remember my dad using one back in the '70's. Also, does the standard 14mm kit with a 12mm plug adaptor fit down into the cylinder head or do I need the dedicated 12mm motorcycle kit?
many thanks folks.
Does anyone have any experience of using the Gunson ColourTune kit for setting fuel/air mixture? I know they have been around a long time as I remember my dad using one back in the '70's. Also, does the standard 14mm kit with a 12mm plug adaptor fit down into the cylinder head or do I need the dedicated 12mm motorcycle kit?many thanks folks.
