I don't know if that would cause it to throw a code 12 or not, but it might. I know low voltage can cause shift problems, but I don't know if it will throw a code. The stator or the regulator/rectifier either one could be causing the low battery and no start issue. I would do the tests for the stator that are shown in the service manual and see what it reads. You can test the stator at the wiring connector without removing the stator. Also, after you get the battery fully charged, start the ATV with the pull rope and check the voltage at the battery with the ATV at idle and with the engine revved up and see what it says.
Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!
You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
Last edited by Helmut; 07-07-2011 at 06:20 PM.