I just got this 8n in the summer. I am going to use it mostly for snow removal. It starts and runs fine but won't charge. It has a 8 V battery, the voltage regulator has 9.2V markered on it. I was told the genny was tweaked as well. I assume adjusted the brushes if it's that type. How can i test the genny and the regulator? I know 8V isn't well received but im stuck with it for now.