Jason wrote
yesterday i went to top off the oil b/c after about 2000 miles
she burns close to a quart.  when i took off the filler cap it was gooed
up and
down with what appeared to be the foam of the great guiness.

Jason
air cooled engines have all they can do to warm up in the winter even
with a thermostat.
they can come up to a reasonable running temp only after there is a load
on the engine for a atleast 15 to 30 min depending on the outside air
temp. repeated short trips and low engine temps ads fuel to the
crankcase. low oil temps make it impossible for the acumulation fuel and
moisture to evaporate. when gas is added to oil it passes by the rings
and leaks from all the gaskets. the fuel oil mix also makes a poor
lubricant. these facts are my case for having a tstat, changing the oil
at 1500 miles and not running syntetic oils with longer change intervals
in the air cooled engines
Bob Donalds
http://www.bostonengine.com