I have a Husqvarna*YTH24V48. Its about 18 months old. Its been just great until today. I turn the key and got nothing at all. I checked the battery and its good. I am going to try and replace the spark plugs but I'd like to have a real repair manual before I start taking things apart. The owners manual is really not sufficient. Does anyone know where I could obtain a repair manual? Thanks in advance.