Looking for a certain tool

chromebumpers

chromebumpers

solid fixture here in the forum
Staff member
I can't find it otherwise I would post pictures. It's a spark plug that instead of white ceramic it is clear glass. You must use a clip-on connector to the end of the installed plug, that way and wIth a long polished tube you can look down the tube while the engine is running and see the color of the combustion in each cylinder. You use this to adjust the fuel mixture in a multi carbureted engine. I don't know if this is made as a new tool or this is an old tool used by old school mechanics. The last time I seen this tool was during a tuneup of an early 60s Ferrari 4 cam.
 
Color Tune Spark Plug I recall Richard.
The Eastwood Company was selling them.
Also private ads in Hemmings motor news.

Tool still works. Best for setting idle mixture on old time carburetors.
 
That was easy, just found one on eBay for $60 shipping included. Thanks
I like the "Hit & Miss motor on top left of first video. They made millions of these - now they are hard to find.
 
I am going have to purchase a Colortune also when I can Richard.
Been using a Vacuum Guage and Tachometer for years to set idle mixtures .
 
I would like to see a "gauge tuned" combustion" and see what it looks like by the Color Tune method.
 
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