I have a 2002 WR426 that i bought about a year ago, in hindsight was probably a bad purchase as it has had a hard ife and a few dramas - but i bought it so now i'm stuck with it.
I had been away on holidays and hadn't ridden the bike for a couple of months. It was running fine before then however i did leave the fuel tap on during that time i was away (doh!)
Came back put fresh fuel in it and got it started eventually after flooding it the first time. After starting it i let it idle for a while and it seemed to be running fine, so i loaded it up and took it out for a ride.
I got it out and started it up rode about 2km then stopped to wait for a friend. The bike died and i thought it maybe it was because i stil had the cold start choke on. I got it started, turned the choke off and kept riding it was ok while the thottle was open but once i slowed down it would die, this happened two more times.
I suspected at this point something was not right, i went to start the bike again and although there was resistance in the kicker there was nothing happening with the decompression lever. It's like it just stopped working, very little resistance and no effect on the kicker.
I ended up having to push the bike back and am not sure where to start looking to fix it. The bike has had other dramas but this is the first time it's done this.
Something that i'm not sure is related: Occassionally when i kick the bike over it jumps into gear, the back wheel spins and then it dies, but it did this before.