A generic How to: headlight switch fix
.-Bob
This is where you should be:

Now that you have it apart it's time to clean. Make sure you use alcohol to clean up all the old grease and 800 grit sandpaper to sand clean the contacts on the switch and everything else.
Here is a trick to clean this little piece on the low/high beam switch itself

You can push it in from the other side, not hard to figure out.
Fourth:
Grease up all the contacts with Di-electrical grease. Here is where i would recommend the grease.

The last picture shows a little plate that switches
from high to low beam or vice versa. Install it like this with some grease:

Now install the main part of the low/high beam switch:

Now the sliding bar that you took out earlier that activates your headlamps, you need to clean the contacts on it and put grease on every side of it because it slides, then install it as illustrated:

That is it for rebuilding the switch. Here is what else i would recommend cleaning up while you're at it. The switch for the turn signals. It looks something like this:

All you do is remove it, and clean off all old grease, clean the contacts, and re-grease and place it back
Now the put all the units back. Make sure all the switches on the control arm all set to off when doing this. Then just put them back the way they were and screw them down. Last part of all of this is to use those tie wraps to fasten the wiring. The illustration below speaks for itself.

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