On 23 Oct 2005 10:51:39 -0700, wrote:

On cold mornings, using summer mogas (which will have a lower vapor
pressure), the fuel doesn't vaporize as easily in the manifold.
Applying carb heat can sometimes improve this and the RPM will rise a
bit. I use the heat on my A-65 on such mornings.

It was 100LL. There is mogas at the airport, but the sample smelled
sweet and clean, and the mogas is foul smelling. Indeed, that's a
major reason we switched back to 100LL -- the instructors didn't like
to smell the mogas in the front seat.


-- all the best, Dan Ford

email: usenet AT danford DOT net

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