Electrickery

Charging system troubles are usually blamed on the reg/rec or battery. Others, thankfully few, have fingered the alternator.

On my bike the problem was a failed starter relay connector. It had overheated, probably due to corrosion. That meant an open circuit between the output reg/rec and the battery.

So, if your bike's battery keeps going flat check this connection before buying a new battery or reg/rec. It could save you $$$.

starter relay troubles
This is the starter relay connector on my '92 VFR750 and it had overheated and failed. Charging current from the reg/rec goes through it en route to the battery, so when it failed my battery kept discharging. I didn't find this little devil till after replacing the reg/rec and the battery.

It is possible that the reg/rec was outputting too high a voltage but, imnsho, the fault was due to corrosion.

Another vote for the corrosion theory! Nice, clear pic. Thanks.

Ciao,

Those are indeed a common failing point. For the 3rd-4th gen VFRness I include the repair kit as more often than not it is needed! Luckily it is a simple fix and not expensive either.

Another vote for parking in a garage if at all possible.
Because, rust never sleeps. :sleep:

ALWAYS check wiring & connectors first when troubleshooting electrics. Failure to do so usually results in wasted time, and money.