"nrp" wrote in message
oups.com...
When closing the throttle, a lot of the fuel on the walls of the manifold
(and there is a LOT of fuel on the walls) will flash off.

That's very true for a cold engine and especially with autofuel (which
I use in the 172M). In this case he was using 100LL in a warm engine,
so it wouldn't seem so likely.

I have never heard before of the kind of stumble given by the OP. It
could be a rich flash afterall.


I think you would find it to be true for warm engines also. There is a good
film of fuel on just about the whole surface of the intake manifold in just
about any carbureted engine.

--
Geoff
the sea hawk at wow way d0t com
remove spaces and make the obvious substitutions to reply by mail
Spell checking is left as an excercise for the reader.