The candle with a transparent insulating body (glass candle) allows the carburetor to be adjusted based on the color of the gasoline flame burning in the combustion chamber. Using the attached color scale, the mixture/CO screw can be set to the flame color corresponding to the lowest consumption. Of course, the maximum performance setting can also be selected.
Available with thread diameters of 12, 16, 14 mm, individually or in sets of 4 candles.