I put the colortune in,

Here's a video of the colortune
in action, showing the regular yellow spark. I was actually surprised at how slow it was blinking, but I guess 600 rpm for 4 cylinders is only about twice a second spark. [Video, 1.9M]

I adjusted the richness

Photo album generated by album tool a MarginalHack written by David Ljung on Wed Jun 3 05:39:55 2015