I have a GX85 riding mower. I was having starting problems and changed the solenoid. It worked fine for about 3 weeks and then would not start. I checked the battery and got a 12.65 volt reading. I hooked up the starter direct to the battery with jumper cables...nothing. I removed the starter, disassembled it, put it back together. Ihad changed it about 2 years ago. I attached it directly to the battery....nothing. I decided to hook it up to my truck battery and it worked. Then I hooked it back to the mower battery...nothing. Can I get a 12.65 volt reading on the mower battery and the battery is bad?