RE: Buying a 2str.
Kostas1,
Look at the Webra50, MVVS49, OS50SX, Irvine53, rossi53.
All these engines have good power/weight ratio, good carburetors and will last a long time[sm=thumbup.gif]
The wing area on a extra300 is not big enough to handle the extra weight of a 60-sized engine. Good luck