OK so I have had this new ATV for about a month now. Put maybe 10 miles on it, nothing off the road really.  I notice a clicking sound this weekend as I am riding through my backyard.  Later the sound comes back, then the engine dies.  Cannot restart - looks like it's out of gas (despite what the gauge says).  I refill.  Now it cannot start and the battery looks low (10.5V instead of 12.8)  Just clicking when I try to turn on.  I stopped trying when I heard a loud bang last time I tried to crank.  

Any suggestions?  Can I hook this up to Jumper Cables to get it started, at least enough to take it to the dealer?  This battery has only got 3.5 hours on it...  Any ideas on the noise?  The clicking?  I am in warm weather and the gas was not old.