Gunson Colortune tool - ZR-1 Net Registry Forums

32valvesftw · 05-13-2016

I have been chasing a miss on my motorcycle and during my research I came across this pretty slick little tool. Gunson Colortune is basically a replacement spark plug that lets you view the inside of the combustion chamber while the engine is running, the color of the flame gives you an indication of the mixture, yellow or orange is rich, blue is good. Here is a you tube explaining it http://www.gunson.co.uk/item.aspx?code=G4074
I think for the LT5 it could be a good way to track down a problem to a single cylinder thereby minimizing the amount of trouble shooting. Where it is probably very handy is with carburetor cars and small equipment like gensets and mowers where you adjusting mixture while the car is running. I guess the same is true for the LT5 if you have the software.

05-13-2016	#1
32valvesftw Join Date: Jun 2015 Location: Texas Posts: 529	Gunson Colortune tool I have been chasing a miss on my motorcycle and during my research I came across this pretty slick little tool. Gunson Colortune is basically a replacement spark plug that lets you view the inside of the combustion chamber while the engine is running, the color of the flame gives you an indication of the mixture, yellow or orange is rich, blue is good. Here is a you tube explaining it http://www.gunson.co.uk/item.aspx?code=G4074 I think for the LT5 it could be a good way to track down a problem to a single cylinder thereby minimizing the amount of trouble shooting. Where it is probably very handy is with carburetor cars and small equipment like gensets and mowers where you adjusting mixture while the car is running. I guess the same is true for the LT5 if you have the software.