In article .com,
wrote:



More likely the engine had loaded up with raw fuel. With carb
heat on, the mixture gets pretty rich, and with the throttle closed
there is very little airflow through the engine. Fuel can puddle in the
intake manifold, and upon opening the throttle all that gasoline is
sucked into the cylinders and floods them. It's worse if you shut the
carb heat off first, as the cold air reduces the vaporization of the
fuel.
Don't make long power-off glides when it's cold and with carb
heat on. Clear the engine often, and make sure it's ready to run if you
need it.


No that isn't what happened. It was fine for the first couple hundered
feet of the climb. If it had loaded up it would have stumbled as I
added power.

--
Dale L. Falk

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

http://home.gci.net/~sncdfalk/flying.html