yes, .9 is a bit low. It means there's something wrong.
The stator is easy to remove and easy to check.
drop the oil into a container and save it.
remove and keep the bolts over the sprocket cover and stator organized by putting them through a cardboard panel. Pizza box is fine. Just poke the same holes that are on the covers and keep the bolts where they correspond with the holes.
Once inside you want to look at the condition of the stator windings and find out if they're charred or burned anywhere. If so, replace, otherwise it's usually a short in the wires leaving the stator on the way to the harness.
You often need to peel back the fiber covering on the wires to find splits and cracks.
A rewire is not too hard, though it takes patience.
Carefully reassemble and seal with a clean, sharp bead of black permatex gasket sealant. finger tighten the bolts and after about an hour, torque them back down. Don't over tighten or you'll crack the covers.
Good luck, report back.
Drewcifer.