Ave replaced the stator on my ‘09 F650GS. Was not generating enough current to keep battery charged with lights and warmers running. Low output AC voltage from alternator and no increase in volts with revs. New stator did not help, but when unplugged from rectifier, alternator gives good voltage and increases with revs! Presume the rectifier is the issue, but have read nothing that mentions this behaviour. All the symptoms I have are consistent with stator issue and not rectifier. Can anyone give me an opinion on this? Thanks.