spark plug problem

[Ned]

I have a strange Spree. When I fire it up after sitting overnight, it idles but dies if I twist on the throttle. After about five minutes of idling (if I don't mess with the throttle), it dies on its own. If I take the spark plug out, it is oil fouled. After I clean it off and replace it, the Spree will start and run fine all day. Why oh why is my Spree misbehaving???

[ferchja]

By Starter issue, you are running rich and killing the spree on throttle because of that search and ye shall find.