I'm just saying, the E50 engine is literally the simplest thing since bologna sandwiches. There are tons of tutorials in the wiki. There are also utoob videos. If you have any ability to work with your hands and follow directions, you can do it. Start very simple first, and get it running well stock first. Follow Fred's Guide. It's easy. It will save you so much headache if you learn to do it yourself. Unless you can find a shop specializing in vintage mopeds. But just learn it. It's simple.