I've got an engine I bought from a fellow that was sold as a 140L. It has the box and paperwork of an L, but I was under the impression that all 140L's have the rear of the engine set up with the ability to mount the YS soft mount on it. This engine does not which leads me to believe that it might be an FZ. Is there a definite way to determine the true identity of this engine with no doubts? Either way, it's a great engine, but I'd still like to know what I've got!