GUNSONS COLORTUNE 14MM SPARK PLUG
MSA1002/G4074- GUNSONS COLORTUNE 14MM SPARK PLUG
Ingenius kit which allows you to see the colour of the combustion in the cylinder head chamber by virtue of a glass topped spark plug. This takes the guess work out of mixture adjustment as different fuel/air mixtures burn with different colours. A full chart and instructions make this an easy to use kit.