Gunson Colortune?

[Goobzilla]

Anyone used one? Looks like a pretty easy way to see what's going on with your combustion. The 14mm thread kit with the 18mm adapter should take care of most of my vehicles.

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[ndnchf]

I got one 4-5 years ago, Haven't used it much but it does work as advertised.

 

[richfinn]

Not really much use on modern cars with o2 sensors, but pretty good on old classics with carbs.

 

[Goobzilla]

Not really much use on modern cars with o2 sensors, but pretty good on old classics with carbs.

I try not to work on anything that doesn't have a carb so this might be a winner for me.

 

[cide1]

A lot of vintage motorcyclists recommend them. I've never tried them, but have read many positive reviews.

 

[compo7000]

Not really much use on modern cars with o2 sensors, but pretty good on old classics with carbs.

+1. Even used it on a petrol lawnmower