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NC21 Charging problem

Posted: Tue Apr 09, 2013 2:27 am
by damiannunn
Hi, Im a newbie with my first VFR looking for some help please...

My problems started with a loose +battery connection.

After I found and sorted this, my battery would not hold/charge.

I replaced the battery but still it goes flat after use, especially after use with lights on etc.

It was a little time before i found the loose connection so i assumed the battery was in need of a good charge or knackered from not having a decent connection to the bike to be charged.

Battery was old so I hoped a replacement would work but it didnt.

Any help would be much appreciated

Re: NC21 Charging problem

Posted: Tue Apr 09, 2013 3:49 am
by magg
With the engine running measure the battery voltage, should be 14-15 volts dc at 5000 rpm. Then turn headlights ON and battery voltage should remain at 14-15 volts at 5000 rpm.

Re: NC21 Charging problem

Posted: Tue Apr 09, 2013 1:13 pm
by duncan
Problems with charging are most likely to be caused by a faulty or badly connected regulator/rectifier