On Tue, 14 Apr 2009 06:05:50 -0600, "Canuck57"
wrote:

I would pick 2. While 2 has more parts, not really that many more parts. A
pistion, connecting stuff, 2 more valves and that is it for more moving
parts.

I'd go for 2 cylinders also, everything else considered. It's been my
experience that small 2 cylinder engines start more easily, especially
if the spark plugs are starting to get marginal. Sometimes they will
fire on one cylinder and that's enough to get the second one going.