Well actually it's 138cc! There is a 98cc available. The carb WAS a float type, but a Walbro WB or WGA will fit. A pump tap will need to be added for the pump portion of the carb. Now for some more news, the 49cc Tecumseh weighed in at 6lbs even fully dressed. After take down to bare block less portion of crank to be removed and spark plug... now get this 3lbs on the nose!! Will it last in a plane? Who know, but for $35 shipped who cares!