Fabio,

I don't know what 3 pieces you are talking about. Did you buy this engine used or new? What is the serial # and what color is it? Is it propane or kero start? Did you get a manual with the engine? Our website www.kingtechturbines.com has a manual you can down load. Did you register the engine? I suggest setting the engine up on a test stand and learning how to use it outside the plane incase you have a problem. You don't want to burn a plane to the ground by accident. Please read the manual completely and get to know the engine before setting it up.

Regards,

Dirk
KingTech Service, USA & International