Question about 2007 Suzuki GSX-R 750
Battery doesn't hold a charge, have to keep charging
Posted by Anonymous on
It sounds like its possibly a bad regulator/rectifier. I have posted a link to a video on how to test your regulator. How to test 2 plug Regulator Rectifier for K6 K7 GSXR 750 600 1000
Posted on Apr 10, 2017
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
SOURCE: my battery wont keep a charge
did you check the rectifier circuit? thats the only thing left in the charging system circuit....you can check this buy using a voltmeter, first gain access to battery.... ground the black meter lead to a good frame ground (make sure bare metal surface, not painted), and touch the red lead to the positive terminal on the battery..with the engine at idle, you'll probably see about 12.5v or >...now increase to 4000rpm and watch to see the voltage rise to approx. 13.5v to 14v and then while holding it at this rpm you should see the voltage being rectified down to about 13v, release throttle now, this is normal operation rectifier is working. If the battery still wont hold a charge then the negative battery cable is probably shorting out on the frame somewhere and draining the battery. You can try to see if this is shorting out by driving the bike around (if you can), for at least 15 minutes above 4000rpm then take a voltage reading real quick... it'll probably be around 12.6 or> ..13v is excellent. now disconnect the negative cable.. tie it off so it wont touch anything, and leave over night next day it should still read about 12.6v. Hope you find the trouble. Can you let me know if this helped you a lot.
Posted on Apr 05, 2010
sounds like the battery either not holding a charge start the bike run a multi meter across the battery whilst giving a few revs and it should read between 13 and 14 volts if it reads this then its dfinatly the battery but if the voltage does not go up with increased revs first thing would be the regulator rectifier last thing the most exspensive would be the alternator hope this helps
Posted on Oct 26, 2010
The reason the bike shuts down when you remove the negative cable is because you are removing half the circuit.Go and get yourself a volt meter that will do volts DC.Start the bike up and and with the leads on the appropriate terminals have a friend bring the bike off idle and read the voltage.You should get somewhere between 13 to 14.4 volts.Anything less than this means you are not charging up the battery.Good Luck
Posted on Nov 14, 2010
Definitely a charging issue. Always check the battery first, I prefer a gel cell battery over acid. Battery must be good and strong to charge properly. This charging system is so small , it only operates enough to maintain battery voltage. Normally it wont charge a weak battery, so start there first. you can check the voltage coming from the stator, at 3k RPM you should be getting around 60-80 volts per leg. If each stator leg checks within these results, it will be a good stator. The reg/rect is not something I can tell you how to check on the bike. We have a stand alone system here where we bench test them off the bike to eliminate the rest of the system to test Just the reg/rect.
I have these stators here new also have the reg/rect, both have a one year warranty. If you need more help let me know. Thanks
Posted on Feb 21, 2012
Tips for a great answer:
Apr 01, 2018 | 2004 Suzuki GSX-R 600
Oct 31, 2012 | 1992 Chevrolet Camaro
Oct 18, 2012 | Panasonic Lumix DMC-FS4 Digital Camera
Oct 02, 2012 | Cars & Trucks
Sep 20, 2012 | 1997 Suzuki GSX 600 F (Katana)
Aug 23, 2012 | Ridley Motorcycles
Jul 17, 2012 | Toshiba Satellite A215-S7422 Notebook
Jun 05, 2012 | Vtech ia5870 Analog Cordless Phone
Feb 09, 2012 | 2001 Honda CBR 929 RR Fireblade
173 people viewed this question
Usually answered in minutes!