Jay Honeck wrote:
you do seem to have a bit *too* much trouble with 100LL. There are lots
of these engines running around on Avgas without near as much difficulty.
I'm wondering what spark plugs you are running? Can you check, and let us
know?


Yeah, I'm wondering about that. I know this time was probably due to the
extended period of idling, awaiting my clearance to depart -- but, shoot, I
had it leaned back pretty good. Or so I thought.

I may need a hotter running plug. Any suggestions?

If you constantly have problems with 100LL then the problem is you or
your engine. I run mostly mogas but literally I cannot tell when 100LL
is in the tanks. It runs exactly the same in all seasons on any mixture
of mogas/100LL. I have never had a fouled plug and I don't lean
carefully on the ground, sometimes I pull the mixture out sometimes I
don't. Makes no difference. And here in the summer the DA usually gets
to 7000. If you have all these problems then you've got a problem not
related to the type of fuel.