Honda express wont spark

I got a Honda Express 2 from a garage sale and the guy said it didn't run and he knew it was something electronical....I figured out that we are not getting any spark. I went online and checked the points and cleaned them. Unexpectedly the points and coils are very clean, I think they were cleaned before. I got a new ignition coil and that didn't do anything. New spark plug, nothing. Found a green (ground) wire that wasn't connected in the headlight, connected it, nothing:( Please help me! Get this out of wiki