I recently bought a 2000 Road Star 1600(carb). I test rode it and was fine and rode it for a few days. It was being a little sluggish to start so I checked the battery and it was fine. Iwent to start it one day and the electronics and lights all came on as normal but when I went for the ignition nothing happened. No clicks or cranking sounds at all. I have replaced the spark plugs, tip sensor and right hand switch. Any ideas?