I purchased a Yamaha YICS motorcycle engine, but I don´t know what it came off of.. Does anyone know how to decode the number on the engine?? I don´t have the complete vin and I don´t know what model or year it came off of.. I tried to research it, and I believe it´s a XJ900 early eightys... The engine number is 35h-001409.. Please help if you can... Pedroruiz7@aol.com