I recently went on a ride and the atv started backfiring and sputtering until finally dieing. I figured it had to be a dead battery. Sure enough it was. So we jumped it and it ran fine then did the same thing. Voltmeter gets 8v upon jumping and immediatly it deains to about 6v then dies. The battery is good ive tested that. So it has to be the charging system. Im not very familiar with non alternator style charging systems does anyone have some advice on what part might be bad, where its located, or procedures to do? Thanks for your time.