So I picked up a great condition 2005 525EXC from a colleague of mine at work. He hasn't ridden the bike in about 4 years so after doing a little work she's now running beautifully - taking her on the Quads4Quads as a tester to see how she does. Problem is I cannot get the speedo/odo unit to work at all. Replaced the lithium battery, checked the wiring, replaced the magnet.....still nothing.....any ideas or is my only option to buy a new unit?