Hi all! I have a problem that is doing my head in! It is a long story but stay with me! Many other threads I have read cover bits and pieces of my problems but none have fixed it. Here goes! I have an '06 wr 450. My battery seemed to be getting down (after 3 years- it's a stock yuassa) so I kick started to get going. While out riding, at low revs, it would carry on popping and stalling and as it turned out, the battery was so flat the bike hardly ran down low, but kept going all the same. We came to a stop for a break, but when I went to leave, I had no dash lights, starter or anything. A couple of kicks later and it fired so I rode it home and put it on charge and the next day all was normal (dash, electric leg ect). Time to follow the manual and it's testing procedure. With the bike running, I had no headlight and no charge, checked everything as per instructions and it seemed to be the regulator/rectifier, so I replaced it with a new (genuine) one much to the delight of the local supplier who told me this would fix the problem.... It did not. Took it for a ride, same problems. Kick started fine and rode home. Tested every thing again, resistance tested the stator and so on. This is what i've come up with. Sometimes the problem is gone and other times it is there. Somtimes when it will not charge or run lights, I can give it some big revs and it comes back to life! Bash it over a jump or two and out they go again. (i had the multi meter strapped to the bars!) I tested the output of the two stator outputs while hooked up and they were low (like 11-12v) and they actually dropped a bit with revs, so I un-plugged them and there was around 50vac each. I'm at a loss and feel like putting a match to it!!! Any help appreciated.