LIGHTS DIM

[GRAPEAPE94]

I have noticed recently while riding at night my headlights will dim if I apply the brake while stopped at a traffic light. they will brighten when I rev the engine slightly but will dim again when I even take my hands off of the bars. Am I looking at a new alternator? I have already replaced the battery and made sure that all connections are clean.

[jinx]

If you would like to try a less expensive solution you can get the brushes for under $20.00
The oem part # is 31140-P64-902 BRUSH SET. It looks like you will have to solder them
into the regulator.

[Peteswing]

I just noticed the same thing happening to me. I did have my seat and hand heaters on at the time, just at a idol my headlights went dim just enough to see a difference. I have a 2010 going to check the battery. Hope it's not an alternator problem,will be doing some test to try an fine the problem. There dozen seem to be to many alternator issues hoping it may be time for a new battery.

[jinx]

Peteswing is it possible that your wing is still covered under warranty ? If so the dealer should fix it because it
may be a safety issue.

[Peteswing]

Thanks for the reply was thinking the same thing. Will have to take it in an have it looked at.

[thrasherg]

Not to play this down (you should ge6t it checked), but most alternators do not put out enough volts at idle to charge a battery so lights going dim is normal as the voltage drops down to whatever voltage the battery is supplying, as the engine revs increase, the alternator starts to recharge the battery (it has to raise the voltage to almost 14 volts to do that) so the lights get brighter. it is fairly normal for the lights to dim a little when just sitting with the engine idling.. Get it checked, but if the battery is healthy and the alternator is charging, then it is nothing to worry about.

Gary

[artgrantz]

Not to play this down (you should ge6t it checked), but most alternators do not put out enough volts at idle to charge a battery so lights going dim is normal as the voltage drops down to whatever voltage the battery is supplying, as the engine revs increase, the alternator starts to recharge the battery (it has to raise the voltage to almost 14 volts to do that) so the lights get brighter. it is fairly normal for the lights to dim a little when just sitting with the engine idling.. Get it checked, but if the battery is healthy and the alternator is charging, then it is nothing to worry about.

Gary

That's exactly what I was going to say.
One of the first items I install on a bike is a voltmeter. It always drops down at lights then returns to normal when riding. Nothing to be concerned about.