Colourtune

[jackstraw]

I'd like to use Colourtune to reset my air mixture needles.
Set with 1 3/4 turns out I have a nice blue ring but it flashes blue for three beats and then flashes yellow for one beat. To get rid of the yellow altogether I need to go to 3 turns out.
Would anyone with a good working knowledge of Colourtune confirm that my 1 3/4 setting is good
I have a video but cannot upload .mov files to the forum. Instead I have taken some stills which I have attached
Thanks

[steve murdoch icoa #5322]

Never used one but there some info in this thread on using a Colourtune.
viewtopic.php?t=10823

[CBX-tras]

If you have to go 3 turns out, you have other carb issues.

[Larry Zimmer]

Never used Coulortunes. However, 1 3/4 turns should work well. If the bike ran well at 1 3/4, don't 'fix' it. If not, my first thing would be to look for air leaks. Then, into the deeper forest of carbs.

[JoeInTUS]

Your observations don’t make sense to me. Yellow flame indicates a rich mixture. Opening the mixture screw to 3 turns should cause more yellow flame not less.