Hi all... I'm sure it was already discussed a long time ago, but I'll ask anyway. I've got a 2004 CBR 1000RR, and I'm having problem with charging the battery. I've replaced the battery, and now the stater/altenator, but I'm still getting problems starting my bike after a day or two. The altenator WAS damaged, and the battery was also not in good shape after more than two years use, so I know that I didn't make any mistakes in replacing them. I'm told now to replace the regulator as well, but when I check the voltage on the bike, I get 13,6V on idle and 14,7V on power.
Is there anything else that could be causing my problems, like a short, fuse, anything??

Do you have an alarm or anything else that might draw power?
Does the battery still go flat if you disconnect the battery terminals for the couple of days it's sitting?

Haven't tested the battery on it's own yet, but the battery is new, and it has got about 12,5V. I'm taking it in to some people to have it tested as well. No alarm on my bike. The only thing I have that could take power is a HID headlight. But I'm not sure if that could cause any problems...

Had the battery tested. Battery is fine, just needs to be charged... I checked, and it also seems that the earth connecters are fine. Got continuity where it needs to be..

Classic regulator/rectifier symptoms. If it starts but doesn't charge and dies after a few days, im about 90% positive its the regulator. There are few situations when it is not as in stator or starter but for some reason these regulators don't have such a long lifespan.

I bought one of those hong kong regulators for my blade for like 26 bucks from ebay and its been on my bike for about 2 and a half years and still going strong. most guys on here will say dont cheap out and buy OEM one thats like $150 but it will honestly have the same life span and for 26 bucks, you can buy like 5 and still wont be the same amount as an OEM one

That was what a friend of myne told me as well yesterday. I am just confused because I get the right voltages when I test the bike after the stator/altenator replacement. Is the regulator sending the correct volts, but just not any Amps to charge? I'm just wondering what is happening here, so I can better understand the problem.

Well the regulator job is supposed to be a resistor that only allows a pre-specified amount of voltage to go to the battery. The excess voltage is sent to ground so as not to over-charge the battery.

Think of it like over charging a cellphone and then then battery goes bad over time (over charging) or running a car with out an alternator, your car will still start and run but will drain the battery in no time at all (undercharging/not charging at all)

That's the part that confuses me a bit. I'm getting the correct Volts to the battery, but it still isn't charging. 14,7V on power (stable) and 13,6V on idle (also stable). I know I probably sound stupid with all these questions, but I've just got to know what's going on...

That's always happened on 04 05 model CBR1000rr, my friend always ride on city area,stop and run all the time, your should buy 06 .07 model CBR1000rr stator flywheel and regulator(charging system), then everything is good...My friend installed on those parts,no problem till now.

I have spoken to a Dealer yesterday, and they adviced me to check the fuse box on the bike. Apparently, if the box has any damage on it, it could cause the charge to lose the Amps from the charge due to a 'short'. I have checked, and everything is fine, so I ordered a new Regulator today. Let's just hope that is the last thing to replace. Wil update as to the results...