Here's how its done.
Order some PLCC2 SMT LEDs in the colour of your choice. I got mine from an ebay seller called Phenoptix They cost me £2.50 for 10. Here they are.
They are 3.5 x 2.8mm in size, voltage is about 3.2 volts. These are the same as ours.
To remove and disassemble the ER6F Dash
1. Remove the screen
2. Remove the 2 plugs holding the triangle cover
3. Remove the 2 allen bolts on the top of each side of the fairing next to the dash.
4. Undo the 3 screws holding the dash assembly on.
5. Pull the dash and surround out. Flip it over and remove the dash via the 3 screws.
6. Disassemble the dash cluster by removing all the screws.
7. Remove the rear cover. The circuit board and inner assembly come out as 1 piece.
8. When you flip it out, you find 2 white pins will also fall out, these are for the rubber switch on the front of the dash, remeber to reinsert these when building back up the unit.
9. Using a pair of needle nose pliers, locate all the tab around the outter edge and the 2 in the middle, and bend them straight so the PCB can be seperated.
10. Next undo all the screws holding the PCB down.
11. And there you have the PCB out and ready to solder.
I wont bore you with the soldering bit, you can read it here:
http://www.kawiforums.com/how-tos-faqs/32331-changing-your-backlight-color-your-gauges.html