Adjust carburetors or injectors with a translucent spark plug while the engine is running. The Colortune allows you to watch the flame in the combustion chamber as adjustments are made.
- Adjust the idle mixture and determine the overall condition of your carb during actual use
- Simply screw the Colortune Engine Analyzer into one of the spark plug holes and you can see the color of the flame produced during combustion
- Includes detailed, full-color instructions, special viewer, cleaning brush and extension
- For use on Motorcycles and High-Performance engines with 14mm thread spark plugs