my 2155 cub last fall was quitting on me, cool off , would restart , then quit again, after some research, I just installed a new dsai coil, fired up just fine , now it is not charging, checked e-thing I know to check, voltage lite comes on if I turn lites or deck on, with a voltmeter it was gaining .001 volt bout every 30 seconds...example 12.36 to 12.l37 took 30 seconds, nowhere near the 13.8 to 14 vol.ts it should b... HELP....................STEADY DISCHARGE IF LITES OR DECK IS ON...