I'm having a problem with batteries on my sons 07 outlaw 90. The batteries go bad after a day or so. Is there any known problems that these machines are known for in their electric system. If not then what should I look for as a possible problem?

 

Not charging? Check at the battery with a multimeter, should be 14 to 14.5 volts with engine running a little above idle, if not charging could be voltage regulator bad, should be a black box on the front end of the machine, service manual tels how to check it, I cant remember the steps, Ill bet Old Polaris Tech can tell you , he's got a better memory,lol.