Colortune Spark Plug to assist in the determining proper fuel mixture -14mm

Product Details

For High Performance Motorcycles Engines use Colortune 19-4171-100 (12mm) or 19-4172-100 (10mm)

• Now you can 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 fluid and brush and extension
• Fits cars with 14mm thread spark plugs.
• Adapters available for 10mm, 12mm, 14mm long reach and 18mm thread plugs

Customer Reviews ::

Didn't fit - William - Texas
Didn't fit my older Bronco, now you must buy an adaptor. Wasn't impressed with the manufacturing of this product. Pretty expensive for plastic.