Obby Posted July 20, 2004 Share Posted July 20, 2004 Went to start the bird, that horrible sound we a dred came from the engine. You know, that errrt... errrt... no starty sound :sad: . So like the well prepared motorcyclist I am, I pull out my motorcycle battery charger and fire it up. Battery was dead, but took a full charge in an hour. Started up the bird, checked the voltage with a mulitester. Output was at 12.5 volts. That sounds a little low to me. Should it be putting out more than that? If so, what part should I be looking at testing/replacing? Any help would be great. Thanks, Obby ps. could this be a stator issue like the thread below? Quote Link to comment Share on other sites More sharing options...
bajjer9 Posted July 20, 2004 Share Posted July 20, 2004 I would check the Regulator/rectifier first Quote Link to comment Share on other sites More sharing options...
silverbird1100 Posted July 20, 2004 Share Posted July 20, 2004 Same think happened to me and it was the stator. Mine was all black and burned up, the new one was green. The 02's and up I think had bigger R/R's then hold up pretty well. Quote Link to comment Share on other sites More sharing options...
Obby Posted July 20, 2004 Author Share Posted July 20, 2004 Guess I'll have to do some electrical testing on the reg/rec and stator. Fun stuff. Quote Link to comment Share on other sites More sharing options...
poida Posted July 21, 2004 Share Posted July 21, 2004 when my alternator went on my bike one honda mechanic said it was the regulator rectifier.took it to another mechanic for a second opinion and he reckoned that if the reg rec had gone then it would be too hot to touch.can anyone else verify that as it would be the easiest way to check if it was still good. Quote Link to comment Share on other sites More sharing options...
Buzz Posted July 21, 2004 Share Posted July 21, 2004 Obby, both Hugo and I had a charging issue as well, but caused by different problems. We both documented it here. Hope this helps. http://www.cbr1100xx.org/forum/viewtopic.p...ight=cycle+stop Quote Link to comment Share on other sites More sharing options...
jrdxx Posted July 21, 2004 Share Posted July 21, 2004 The battery might also be due for replacement. Quote Link to comment Share on other sites More sharing options...
Obby Posted July 21, 2004 Author Share Posted July 21, 2004 Obby, both Hugo and I had a charging issue as well, but caused by different problems. We both documented it here. Hope this helps.http://www.cbr1100xx.org/forum/viewtopic.p...ight=cycle+stop Checked out the thread, rather amusing and informative on where not to bring your bird in for service, but no real info on how to diagnose the charging system. Hugo case sounded familiar to mine. Could be the stator as when i rev it up the charging does increase, but the battery is still losing a charge over time. The battery is about 2 years old. It's a maintenance free yusua type. It takes a full charge on the charger, so i don't think there is anything wrong with it. I did notice a little corrosion on the positive terminal. I clean/sanded that up and tested for drain with my trusty radio shack pocket multi-tester. The continuity on the ground as specified the maunal. The continuity is 0.0 - 0.2 (i think that the verbage). In other words, little to no drain. This weekend I will try to test the teminal comming from the stator and the terminal going into the reg/rec as described in the manual (kinda confusing though, any electrical experts here?). In any case, after a full trickle charge last night the bird is more responsive than ever. Even caught myself a power wheelie where there was none before :grin: . Quote Link to comment Share on other sites More sharing options...
Obby Posted July 22, 2004 Author Share Posted July 22, 2004 Did some more testing on the birds battery last night. Looks like I was completey wrong about "if the battery takes a charge, it should be good". It takes a charge alright, but with a load on it (headlight on, engine off), it looses the charge in minutes. Found a good article on batteries for those bored at work today... http://www.yuasabatteries.com/motor_battery.asp Looks like I'm off to pickup a new battery and put this problem to bed. Quote Link to comment Share on other sites More sharing options...
Grey_XX Posted July 22, 2004 Share Posted July 22, 2004 12.5 is not enough. It should be 12.8 with the battery alone. Rev it up and it should go over 14 at around 3-4 krpms. If it does not budge when revving it up -> most likely RR dead Once RR is replaced, make sure you get enough juice with the fan+high beam on otherwise the stator is partially shagged. Hugo PS: I am talking to my dealership right now to get my old - good - battery back. If they find it, you can have it. Good for troubleshooting, at least. Quote Link to comment Share on other sites More sharing options...
Obby Posted July 23, 2004 Author Share Posted July 23, 2004 Thanks Hugo. You have PM. Quote Link to comment Share on other sites More sharing options...
jrdxx Posted July 23, 2004 Share Posted July 23, 2004 Before you splurge on a new r/r, check the stator to make sure all three legs are good. Quote Link to comment Share on other sites More sharing options...
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