Misfire or imagination

[Davo]

Hi all,

I thought I’d try and get the mixture right on my Weber carb into the pinto engine. To do this I used a Gunson color tune allowing me to see the spark. 
 

I got the mixture much better but I did notice that the ignition didn’t seem regular like it misses a fire. 
 

check out the video and see if you agree or if I’m imagining this 

 

[richyb66]

Difficult to say from such a short clip but I'd say probably not. 

The colourtune spark plug is fairly unsophisticated compared to a real plug. I'd put the proper plug back in and try it to see if it's missing, ideally with a test drive. 

[blue]

DONT use it.  Throw it in the bin.  
to get the nice blue colour you will be running sooooooo lean you’ll burn a piston. 
if you want to tinker buy a tail pipe lambda clamp fitting and an air fuel gauge controller Like the MTX L PLUS. 

[Davo]

Thank you. It has it's MOT next week so that should give me an indication if I have it roughly right?