Bad battery or bad rectifier on CBR600RR - 600RR.net
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post #1 of 26 (permalink) Old 10-14-2018, 12:17 PM Thread Starter
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Bad battery or bad rectifier on CBR600RR

Hi all,
having a problem with my 03' CBR600RR bike. Dead battery after driving for a bit. Battery voltage:
not started 12.4v
Idle 11.5v
2000 rpm 12.5v
5000 rpm 12.9v
Just want to be sure if it's the battery or rectifier before I buy new parts. I'm hoping it's not stator!
I replaced the Rectifier about 5 years ago with OEM because it was over charging.

Any thoughts would be appreciated!

Thanks,
Bill
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post #2 of 26 (permalink) Old 10-14-2018, 12:50 PM
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Test the stator. It's not hard to do. Meter on AC volts, unplug the stator connector and check volts between all 3 lines. Should be 20ish at idle, and over 50 at 5000


You cannot diagnose a problem without testing. There is no way for anyone here to tell you what is wrong based on the information you have provided.
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post #3 of 26 (permalink) Old 10-14-2018, 01:20 PM Thread Starter
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Quote:
Originally Posted by wibbly View Post
Test the stator. It's not hard to do. Meter on AC volts, unplug the stator connector and check volts between all 3 lines. Should be 20ish at idle, and over 50 at 5000


You cannot diagnose a problem without testing. There is no way for anyone here to tell you what is wrong based on the information you have provided.
Ok...I'll check the stator for voltage. Just use the tester leads in each of the 3 lines? Does the negative test lead have to be grounded? Just asking because I don't want to fry the stator!

Thanks,
Bill
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post #4 of 26 (permalink) Old 10-14-2018, 01:30 PM
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there are 3 wires. call them A B and C. measure A to B, then B to C, then C to A

the stator has no ground reference so there's no point in measuring to it.



you can't fry the stator measuring volts, no matter how you hook up the leads (unless you short it out with one lead somehow), volts measurement is high impedance, it doesn't draw any appreciable current.
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post #5 of 26 (permalink) Old 10-14-2018, 01:48 PM Thread Starter
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Quote:
Originally Posted by wibbly View Post
there are 3 wires. call them A B and C. measure A to B, then B to C, then C to A

the stator has no ground reference so there's no point in measuring to it.



you can't fry the stator measuring volts, no matter how you hook up the leads (unless you short it out with one lead somehow), volts measurement is high impedance, it doesn't draw any appreciable current.

Thanks! Will try it!!
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post #6 of 26 (permalink) Old 10-14-2018, 04:48 PM Thread Starter
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Quote:
Originally Posted by wibbly View Post
Test the stator. It's not hard to do. Meter on AC volts, unplug the stator connector and check volts between all 3 lines. Should be 20ish at idle, and over 50 at 5000


You cannot diagnose a problem without testing. There is no way for anyone here to tell you what is wrong based on the information you have provided.
Got 20v at idle and 54v at 5000rpm. So that seems ok. Whew!
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post #7 of 26 (permalink) Old 10-14-2018, 05:01 PM
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on all three readings?
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post #8 of 26 (permalink) Old 10-14-2018, 05:29 PM Thread Starter
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Quote:
Originally Posted by wibbly View Post
on all three readings?
Yes....all three!

I'll look for an easy way to check rectifier. My meter doesn't have diode mode so that may be a challenge! I'm going to take it to a shop to get tested.

Thanks,
Bill

Last edited by cbr600rrkid; 10-14-2018 at 05:47 PM.
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post #9 of 26 (permalink) Old 10-14-2018, 05:47 PM
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if the stator is producing voltage then it's the rectifier.
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post #10 of 26 (permalink) Old 10-14-2018, 05:51 PM Thread Starter
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Quote:
Originally Posted by wibbly View Post
if the stator is producing voltage then it's the rectifier.
If it is the rectifier what aftermarket would you recommend? This is my 2nd OEM rectifier so I'm NOT getting another OEM. I see one made by DB Electrical....would this be decent?

https://www.amazon.ca/gp/product/B00...K6Y9EEQB&psc=1


Thanks,
Bill
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post #11 of 26 (permalink) Old 10-14-2018, 05:52 PM
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don't buy motorcycle electronics on amazon.


buy a shindengen mosfet type from roadstercycle

Home
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post #12 of 26 (permalink) Old 10-14-2018, 06:32 PM Thread Starter
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Quote:
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don't buy motorcycle electronics on amazon.


buy a shindengen mosfet type from roadstercycle

Home

Thanks Wibbly! Really appreciate your help! Will keep this thread updated!

Bill
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post #13 of 26 (permalink) Old 10-27-2018, 03:41 PM Thread Starter
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Just a follow up...
replaced battery, added extra battery ground wire and installed new Rick's rectifier. Here's where I'm at.....

not started 12.8v
Idle 11.6-12v when hot (1000rpm)
Idle 13.9v when cold (1300rpm)
2000 rpm 12.5v when hot
5000 rpm 12.9v when hot
Stator puts out 15v AC at idol
Stator puts out 55v AC at 4000rpm

So after all that it still seems my battery is still not charging properly when hot. Any further suggestions would be appreciated.

Thanks,
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post #14 of 26 (permalink) Old 10-27-2018, 08:15 PM
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New or not, it sounds either like your R&R is bad, or wiring coming from the battery to the R&R is bad. Perform the checks shown in these videos and you should be able to isolate the problem.
https://youtu.be/F8EjV0IjW9Q
https://youtu.be/ted0_4On29M
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post #15 of 26 (permalink) Old 10-27-2018, 10:42 PM
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Your problem is the stator. Did check it using the diode check function of your meter? Pull your cover off and I bet you have at least one burnt coil. I just went through the same thing on my 07.
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post #16 of 26 (permalink) Old 10-27-2018, 10:46 PM
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you can't diode check a coil.
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post #17 of 26 (permalink) Old 10-28-2018, 12:36 AM Thread Starter
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Originally Posted by C. Chaos View Post
Your problem is the stator. Did check it using the diode check function of your meter? Pull your cover off and I bet you have at least one burnt coil. I just went through the same thing on my 07.
I did do a voltage check and resistance check on stator. Checks ok.

Thanks,
Bill
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post #18 of 26 (permalink) Old 10-28-2018, 12:40 AM
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Which rectifier did you buy? And did you check volts at the rectifier itself instead of the battery?
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post #19 of 26 (permalink) Old 10-28-2018, 09:40 AM Thread Starter
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Which rectifier did you buy? And did you check volts at the rectifier itself instead of the battery?
I bought a Rick's Hotshot regulator. I wanted something to just plug and play and have good quality. I will check voltage on rectifier asap!

Thanks,
Bill
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post #20 of 26 (permalink) Old 10-28-2018, 04:14 PM Thread Starter
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Quote:
Originally Posted by wibbly View Post
Which rectifier did you buy? And did you check volts at the rectifier itself instead of the battery?
Between rectifier harness side plug-in and battery side I'm getting 12.5 V Bike is off.
With bike running at idle 3.5v on positive wire at rectifier output and 7v at 4000rpm . Same specs when I check the other positive wire on rectifier output.
Stator with bike at idle now seems lower at 4v and 50v at 4000rpm

Hope this helps!

Bill

Last edited by cbr600rrkid; 10-28-2018 at 07:14 PM.
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post #21 of 26 (permalink) Old 11-02-2018, 04:37 PM
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Bad stator or magneto.
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post #22 of 26 (permalink) Old 11-03-2018, 11:04 AM
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Pull your stator cover and visually check the stator. It doesn’t take long and you will know for sure.
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post #23 of 26 (permalink) Old 11-05-2018, 04:55 PM Thread Starter
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Quote:
Originally Posted by C. Chaos View Post
Pull your stator cover and visually check the stator. It doesn’t take long and you will know for sure.
So, I replaced stator with a new Rick's unit.... so new battery, new Rick's rectifier and new Rick's stator. The old stator looked fine! Bike charges up 14.5V when cold but when hot the charge drops down to 11.7v at idol and 12.7v at 5000rpm. I'm no further ahead. Ground checks ok and positive wire from battery to rectifier checks ok. I'm out of ideas and money!
Possibly a defective rectifier? It does get hot sitting right next to exhaust manifold.
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post #24 of 26 (permalink) Old 11-08-2018, 09:35 PM
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........

Probably Magneto then
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post #25 of 26 (permalink) Old 11-09-2018, 03:41 PM Thread Starter
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Probably Magneto then

Stator puts out 10-12v per phase when bike is hot at idol. Seems ok.

Last edited by cbr600rrkid; 11-09-2018 at 03:44 PM.
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post #26 of 26 (permalink) Old 11-09-2018, 03:42 PM Thread Starter
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When I unbolted r/r and kept it away from exhaust manifold the charge stayed at 13.9v at 2000 rpm while the engine is hot. Now working perfectly! So the r/r was breaking down from the heat being so close to the exhaust manifold. The Rick's r/r stayed barely warm when it was positioned away from the exhaust. Next step is to relocate the r/r. It does mount to where the r/r stay was mounted but it makes contact with the lower fairing. Anyone ever relocate the r/r? Wondering where the best spot would be?

Last edited by cbr600rrkid; 11-09-2018 at 03:44 PM.
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