I've been having problems with the battery either not holding a charge or getting charged. I took it to advanced and had them test it and their machine said it was good just needed charged. So I put it on one of those slow battery tender chargers. That seemed to work for a few days but then after a day of riding it was dead again. I put a voltmeter on while it was idling and got 12.13. I pulled the positive wire off whle it was running and it ran fine. Makes me think its just a bad battery but like I said, advanced claims its good. any ideas?