Joe,
I had the same problem and after a lot of frustration came up with the following procedure. I was inspired to take this approach after seeing a chrome headset cover at a dealer that came from the factory with the slots I describe already in place rather than the oval holes.
Dave
1) Follow the link below to the Jettin.com web site and download the visor installation instructions. These will show you which screws have to be removed etc.
http://www.jettin.com/Visorinstall.htm
Once you have all the screws out you will soon find out that the front of the headlight assembly can't come off because the windshield hardware is in the way. The next pictures will show you where I cut my front headset cover in order to get it off. These cuts do not affect the structural integrity of the cover and cannot been seen unless you are looking at the bottom of the scooter.
This shot shows the bottom outside of the cover after the initial cuts were made with a pair of cutting pliers. The plastic is soft, pliable and easily cut. It is not prone to cracking. Once the front half was lose I had to pry the cover down somewhat to get the pliers in place to cut. I was an easy operation. Please note that it was the camera flash that makes the plastic look old and beat up. It really was in excellent condition just dirty and finger print covered.
This picture shows The same piece from the inside.
This picture shows the slots I cut once they were cleaned up using a rotary tool.
Once you have the front half off you have to find the six screws that hold the rear half in place. Unfortunately I don't have pictures of the locations but I can tell you two of them are right up front on the speedometer housing, there are two more on the sides (small silver screws if I remember correctly) and the last two are rather buried behind wires and stuff. The last two are a little difficult to get to but not impossible.
Once the back half is off you will see the two receiver tubes for the w/s hardware. This picture shows my hardware in place in the tube.
I used a 3/8 drive hex driver and placed it in the tube then pounded on it with a hammer to drive the hardware out of the tube.
Once you get it back together you never have to worry about removing the hardware if you need to change your headlight bulb, check your steering head bearings or other maintenance.
I hope this helps.