my 86 vn750 will not rev up in neutral, it idles fine but when i give it a little roll on it sputters and misses. put it in gear and all is well. I dont get it. some emissions parts have been removed by previous owner. Also the battery will not charge, when running all electrical functions seen to be powered properly, lights not dim ect. but the battery doesn't seem to be receiving any power. any ideas,