I had read somewhere that the os.18tm engine would work with the revo manifold but was not 100% sure. The reason I wanted to keep the ez start is because I always had trouble starting my other pull start engines and just want to have some fun without the hassle. I am not that worried about the weight of the ez start because I am not going to be racing the Jato. Maybe I could use something like the roto start? What do you think.