Flickering, pulsing lights

[goatman]

I have a 91 with 36,xxx miles, the lights don't have a steady glow. This is all the lights, and the pulsing changes with rpm, higher rpm's means faster
pulsing. It is not dramatic, but definately noticable. I have received lots of
help from this forum and am looking for some more. Thanks.

 

[zippo6]

Kinda sounds like a short or a bad ground?

 

[gamorg02]

bad battery?

 

[naughtyG]

Bad Regulator/rectifier?

 

[vmax626]

Bad Regulator/rectifier?

+1 to that ,
It sounds like current fluctuation and it`s not being regulated .
Low voltage would just show dim lights but not flickering.
<<Dave>>unk:

 

[goatman]

Thanks for the replies, yes there is definitely some kind of fluctuation going on. The battery is pretty new and should not be a problem. I thought I would try the "crimp fix" that I have read about on here also.

 

[Redbone]

I wonder if the regulator/ rectifier that is for sale on the VMOA buy/ sell/ swap section is any better than a old style factory unit. I know the non VMOA members won't be able to see this but here is the ad. VMOA Reg/ Rect
Or would the R1 reg/ rect mod be a better way to go? Gleno's R/R mod

 

[4gasem]

8% better performance... Ooooo Watch out!

I'd do the normal checks... RR and battery.

The crimp fix is always good to do.

 

[goatman]

I did the crimp fix, and it made a big difference. The fluctuation in the lights is only noticable when dropping rpms down to idle. When at a constant rpm the lights do not flicker like they did before. I did notice a crack in the bottom of one of the coils. At some
point I will do the COPS mod and R1 regulator, but the crimp fix made a nice improvement for now. Thx.

 

[Bill Seward]

Run the positive and negative wires coming out of the R/R unit directly to battery. Do NOT mix up polarity!!
If you are still using the old style unit that has no ground wire, run a wire from where the unit bolts onto the footpeg bracket, and run that directly to the negative battery post. Doing this gives the electrons a better chance to actually make it to the battery, and negates the need for the "Crimp Fix"...