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Hi Guarino, first thing you need to do is fire that mechanic!
Need to separate cause vs. effect. Effect you have is bike not starting and dead battery. We’ll completely ignore that because those are not really problem. By focusing on actual problem, fixing battery-charging, then good-battery and bike-starting will be automatic. Many possible causes of battery not charging:
- broken wire in charging circuit, most often at stator plugs
- bad stator, extremely rare and not likely at all
- bad RR-regulator rectifier, very good possibility if bike was ever jump-started from running auto
So please answer some questions and we can narrow down troubleshooting path:
- has bike ever been jump-started from running auto?
- what work was done on this $1000 repair? What troubleshooting steps taken? What was results and diagnosis? What repairs done and parts replaced?
- do you have multimeter and know how to use it to measure AC & DC voltage? Resistance?
This is literally 5-minute procedure to test wiring and $40 part to replace.
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