First things first
The XT's have a rectifier / voltage regulator that checks whether it 'sees' an adequate battery. So, if the voltage from the battery is too low, it will not provide charging current. So, the cause of your problem might be a worn battery.
On a more conceptual level, there is four components that might be faulty:
- Alternator (the stator part with the coils) - measure resistances and compare with those from the book. If they are way off, it might be faulty.
- Wiring - check all connections and cables, clean, tight etc? o not underestimate the number of manhours and the amount of $$ spent on other components while there is just a broken wire.
- Rectifier / regulator - no other way of checking it (known to man) then to swap it for another and check whether there is improvement.
- Battery - see above.
Auke
|