Save your money... even though it says F3A on the box, it's about as far away as one could get. It's just a slightly lighten version of the original, unfortunatly, the lightening creates a great deal of vibration... guess where they took the weight from? yeap, that's right, the counter balance. The engine hasn't been designed with any dedicated muffler pipe or soft mount in mind, leaving you and many before you to do the experimenting. It's should bereported to the Trade Discription Authorities.Needless to say, this motor isn't available from the factory in Europe. It's a local hatchet job.