ok ohm test showed 0 on all three yellow wires and voltage showed 50 vac at 2000 rpm,should I assume the stator is cooked?

 

0 ohms between each other or to ground? Manual doesn't show a limit as to ac voltage,only that it should show no less than 30-40 volts @2000 rpm.. A rectifier should be able to handle that voltage range.Look at this video to make sure as if the yellows were shorting to ground you shouldn't get a good voltage reading like you're showing.
If the stator checks out,it may be the regulator that you installed that's the problem,especially if it's one of those cheap Chinese ones on ebay or amazon.

 

0 ohms between each other

 

Test the leads together and see if they zero out. If they don't that could be the reason. Just trying to make sure before you spend the bucks on a stator. Resistance values are small, 0.43 ohms between each yellow. If you still show the same then safe to say a stator. Better to have gone through the tests to make sure than to do as some have done and thrown parts at one and not be the problem. Still can't get over the fact that ac voltage is decent..

 

not sure what you mean with the leads together

 

Just for grins and giggles,fully charge the battery(load test if you haven't done so) and then check charging rate again. You said it was good,but a load test will confirm.

 

yes the regulator is from ebay

 

Test the leads
"Once you're satisfied that the test probes are properly rated with no visual damage, conduct a simple ohms measurement to confirm they are electrically reliable and able to carry a signal within allowable loss parameters. To "ohm-out" your leads, place your DMM in the resistance (ohms) function, plug the leads into the DMM and touch the probe tips together—red to black. The meter should read about 0.5 ohms or less for good quality test leads."

This is what I meant. If the leads are showing together more than the what the yellows should show,then the resistance test may not be accurate.

 

sorry I rechecked yellows and each is .6 wrong setting on meter

 

Then charge the battery fully overnight,check charging rate at an idle or a little above. If it's still 17 volts or more,at this point it's cheaper to try another regulator before you spent good bucks on a stator that you may not need.