Hi all. I'm trying to fix a cb250 for a friend because the bike has been left at my place. Problem is I don't know what the problem is. I can't get it to start. The symptoms are that when I try to start it it has no life like the battery is dead. I can't push start it. I've tried many times in different gears etc. I've even rolled all the way down a hill in 2nd and even with the engine and wheels turning still no life. I did catch a glimpse of the neutral light though so I got a split second of power from somewhere. It seems to have fuel and no spark (although I'm not sure). My friend thought it was a dead battery and so tried to charge the battery with a charger that was too powerful. I get the feeling that in doing this the regulator rectifier has broken? I'm only guessing this because I've read Hondas have problems with them. Also, I should mention I'm pretty sure the battery has charge. So if it is the regulator rectifier then how to do I confrim this? How do I even find it. I don't have the service manual. Any help at all would be greatly appreciated. Cheers, Josh.