On May 15, 2:08 pm, "Peter Dohm" wrote:
"Robert M. Gary" wrote in glegroups.com... On May 15, 8:20 am, wrote:
We also check the mag grounding
at idle just before mixture cutoff.

Dan

What type of plane are you handpropping that has mixture cutoff? Must
not be the traditional Stromburg carb.

-Robert

This could be just a nomenclature issue. I was taught to call the lean
position of the mixture control "idle cut off" even though it really doesn't
cut anything off. However, it is too lean to keep the engine running at
1000 rpm.

I'm curious about what others think

Peter

In the C140, the Aeronca, and the J-3 the carbs (probably all
Stromburg), pulling the mixture all the way out at idle had no effect
at all on the engine. The mixture control only affected the engine at
power.

-Robert