Originally Posted by
1967brutus
I heard about that, but not sure if I remember right... IIRC that is a glass sparkplug or something like that, right? That you can tune by the colour of combustion?
In a minute or so, gonna try if I can get a decent reading on my little gasoline powered launch.
5 cc (.30 cu.in.) at fixed 1500 RPM... Curious if that is going to work...
Yes, you set the mixture by flame color. Blue with a occasional flashes of white seems to work as a good starting place. I hear Ethanolated fuel change the color perspective a bit but I have not tried that. I lost mine in a robbery along with a triple tier Snap-on chest full of Mac and Snap-on tools.
I look forward to your CO testing, especially results from one of your "tweaked for flight" conversions.