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An effective flamecolour - diagnosis section is included in the booklet. Comes completewith periscope for recessed plugs. Take the guesswork out of engine tuning with theColortune. The world famous glass topped spark plug thatgives you a window into the combustion chamber so you can see theflame. Why is this important?


If your engine needs an adapter piece, screw it into the spark plug hole first, then screw the Colortune plug into that. If the spark plug hole is awkwardly placed, or you are tuning in bright sunlight, it may be difficult to see the window in the plug. A special tube with an angled mirror is supplied in the kit to make viewing easier.


8X 1200° Glass Fiber Spark Plug Boot Heat Sleeve Protector Covers Case SBC BBC See more like this. SPONSORED. ... VASELINE URANIUM GLASS SPARK PLUG BARNEY GOOGLES HORSE (( ID133214 )) $9.95. or Best Offer +$6.95 shipping. 2 Watching. Vintage Champion Spark Plug Mug Clear Etched Glass Logo Cup Tankard Automotive.

www.enginebasics.com/Engine Basics Root Folder/Reading Spark Plugs.html

Reading Spark Plugs. Thanks to Larry Meaux of Meaux Racing for providing this information and pictures. This is only valid if you shut-off the engine after the finish line then tow the car back to the pits where you remove the plugs for reading !!


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For many racing engines, spark plug color is a window into the engine combustion process that can be used for tuning. Without knowing your system inside and out, however, tuning with spark plug color alone can be misleading. Exposure to heat and combustion byproducts changes the colors on the various parts of the spark plug.


COLORTUNE is a unique test spark plug with a glass top that takes all the guesswork out of tuning fuel injection systems and carburettors. This specially manufactured sparkplug operates on the principle that as different petrol/air ratios burn, they display different colours.


Gunson's Colortune spark plug (part number: G4074), for decades has been the motorist's first choice for easy petrol engine tuning.


Automotive Specialty Tools Colortune for 14mm Spark Plug by ... Tuning carburetors by ear is an art, but it is still not as accurate as the visual feedback provided by this tool. Simply replace one spark plug with this tool (hand tighten only), then start the motor and observe the color firing inside the cylinder.