Cheaper Fuel Solution for O.S. 61??
couple of months ago there was a thread going in the giant scale engine forum with a guy who had a senior kadet powered by an echo 21.2cc trimmer engine.
look up the "don't forget echo" thread in this forum and check out av8tor's echo 16cc project. the conversion came out nice and light and was done as a replacement for a .60 size engine in an existing model.
dave