Join Date: Feb 2006
Location: Ohio, Dayton-Cincy area
My bike did the same thing a couple of weeks ago. I went to start it (hot or cold- intermittantly) and it was like there was no battery in it at all. Nothing.
Here is what ended being my problem; I found that when I was pressing the start button, if I turned the key switch slightly, it would start. Turned out to be the key switch contacts. I had to take apart the switch and clean the contacts with very light sandpaper to clean it up. It was fairly easy to do.
I had to remove the headlamp to get to the base of the key switch. There are two small phillips screws that hold the contact base to the switch. Take them out and then you will probably have to cut a wire tie to get it loose. Now the tricky part. There is a plastic cover on the bottom part of the contact block that will get you access to the parts that need to be cleaned. REMOVE IT CAREFULLY!! I took mine apart and springs, clips and ball bearings flew everywhere. It took lots of concentration and prayer to get it all located and back together. If you take it apart slowly, everything will stay in place and you can lightly go over the contacts with emery cloth of fine grit sandpaper. The worst part is the contact block has wires that go to the bike attached to it so you can't take it apart on a table to retain flying parts. I had my bike parked on open concrete that helped the part hunting process.
Provided nothing 'exploded', put it back together like you took it apart, and don't forget to tie wrap the wires like they were first attached (I believe they help secure the block in place).
You should be good to go after that. I did mine in about an hour (including finding small parts) and haven't had any more problems with it since.
LED tail lighted
Soon to be MCCTed