"> Recently I noticed that the low beams seemed weaker than they should be.  I
> first suspected a poor ground connection as I had installed one of Frank
> Condelli's headlight relay kits before adding the higher wattage bulbs.
>
> I removed the black plastic grill and then unbolted the headlight buckets to
> check back there.  What I found is that on both sides, there was on contact
> on each of the low beam headlamp connectors that was discolored/melted !
> That probably explains dimmer low beams."

I've had the same problem and replaced the plugs 2 times in 5 + years.
You can get brand new 9004 plugs at almost any FLAPS ... inexpensive
and easy to keep some in the glove box or other parts storage for
possible on-the-road repairs. I changed my headlight grounds to
grounding on the steel wall just behind the lights, so those ground
wires are only about 8" long, which is a good thing. I'm not sure
what's causing it, but suspect it's the 80/100's I'm running. Haven't
tried using the 45/65 OE's to see if that "fixes" the problem. It's so
easy to change the plugs, and I like the better lighting they give.

Bob Stevens
'87 Syncro Westy