This 14mm Gunson Colortune kit comes with both 10 and 12mm spark plug hole adaptors to enable the kit to be used in motorcycles,generators,garden machinery and snowmobiles etc.To use,simply remove a spark plug,screw in the adaptor then the colortune.The glass top of the colortune allows you to see into the cylinder and set the mixture strength by looking at the effect adjustments have on the combustion flame colour.Blue indicates the correct air/fuel ratio for maximum power and economy,yellow indicates a rich mixture and a very pale blue one that is too weak.The kit includes instructions,an extension to connect to the HT wire,a viewing tube and mirror and a cleaning brush.
Postage,I always try and dispatch same day as payment arrives.I use a priority air mail service but obviously have no control over the delivery times,which can vary depending on destination..
