I have a JD Lawn tractor with the 25HP Intek v-twin engine. It began blowing the 20 amp fuse shortly after warm up. I isolated the problem to the charging system, i.e. the stator and regulator. I've tested the ac voltage output of the stator and it's in spec, so I concluded the problem must be in the regulator. However, I found that either stator lead, with the engine off, shows zero ohms to ground (key on or off) which doesn't seem right. B&S doesn't show a spec for stator resistance to ground. I'm wondering if the stator is shorted to ground and causing the fuse to blow. Should I just replace the stator and regulator?