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Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

Thread: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket? Reply to Thread
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  Topic Review (Newest First)
10-22-2014 9:08 PM
godoy.rafa
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

Quote:
Originally Posted by bladeracer View Post
Single biggest problem with Honda, always has been.
Sorry to bother you again mate, but I think that you could have the answer for my question...

I have found something:
My normal current leak is 1,89mA.
- If I disconnect the R/R it stays at 1,29mA - therefore the R/R steals 0,60mA
- if I disconnect the last 10A fuse (I think it is the clock fuse) it stays at 0,60 mA - therefore clock steals 1,29 mA

This is pretty much my current leak. Is it normal?
10-20-2014 9:42 PM
godoy.rafa
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

Hi, old topic, but I had the same problem yesterday.
I did some tests from the service manual and got this:



What about that? Are my regulator and stator fine, but I have a short circuit somewhere?
08-25-2013 3:23 AM
Fuegoblade
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

Yea, I'm not regularly riding it, just a test ride that one time, and a time before at night to test the high beams.

I should also note that she is a salvage bike from a slow speed lay-over on the left side. Needed a new stator cover, the damaged cover had an almost invisible crack which caused a slow drip. I replaced the cover and gasket during an oil change months ago and the stator did not appear burnt that that time, perhaps its a delayed issue that's just now revealing itself?
08-25-2013 2:58 AM
CBRER
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

You're just killing your battery driving it around with charging probs. I'd guess it's the regulator or stator. I have a used stator from my old 29, that I replaced, thinking it was my charging problem, but then got it diagnosed from the mechanic, and they said I needed a regulator...so I think it's still good...I'ma throw it up on eBay soon in AS IS cond.
08-25-2013 1:08 AM
Fuegoblade
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

Quote:
Originally Posted by IanDoohan View Post
Most 900's don't start making enough voltage to put a good charge on the battery til about 4-5krpm. So if for some reason your flogging around under 5k for an extended period of time with your high beams on or any other added electrical items in an see your battery go dead unexpectedly. But your numbers look good for over that with the 60+ vac above that. As your Rome rise to the 5k mark, what do you see across the battery? Should be in excess of 14 vdc. That will charge your battery enough during an extended ride.
My last ride was during the day, low beams on. Started with 10 miles on the interstate at 65mph to ensure I got up a good charge, then a 35mph cruise for 5 miles on surface roads... ...and then it started cutting out. Had to pin the revs around 4-5k to keep her alive and get her home. Died on me once because I let off the throttle, I roll-started it and got home. Felt like an ass, excessively rev'ing at the lights...

Also, I will note that I disconnected the front brake switch, so I was only drawing current for the brake light when I used the foot brake.

I have no LED lights, other than the aftermarket turn signals. The fronts were converted to 2 wire before I bought it, but they work fine. Stock headlight and tail light. No aftermarket electronic mods.

I'll check the battery at 5k rpm tomorrow morning.
08-23-2013 9:50 PM
IanDoohan
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

Most 900's don't start making enough voltage to put a good charge on the battery til about 4-5krpm. So if for some reason your flogging around under 5k for an extended period of time with your high beams on or any other added electrical items on I could see your battery go dead unexpectedly. But your numbers look good for over that with the 60+ vac above that. As your Revs rise to the 5k mark, what do you see across the battery? Should be in excess of 14 vdc. That will charge your battery enough during an extended ride.
08-23-2013 4:52 PM
Fuegoblade
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

Ok dug into it today, but my readings seem odd:

Battery: 12 DCV Battery while running: 13.7-14 DCV

Stator plug plugged in, while running: 0/0/0 DCV and 11.4/11.4/11.4 ACV
Stator plug unplugged, while running: 0/0/0 DCV and 20-22/20-22/20-22 ACV. @5000rpm I got 67/67/67 ACV

Rectifier: plug plugged in, while running: 13.7/13.7/13.7 DCV and 29/29/29 ACV

Unplugging the stator while running causes rpms to rise slightly.

When I disconnected the positive battery terminal while running, it ran for a second, then the gauges stopped working, then the bike cut off.

So does this sound like the stator? My tests are showing equal current, no matter how I switch up the meter terminals.
08-23-2013 4:21 AM
Fuegoblade
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

Ok sorry, I was testing the stator plug and only did one of the phases, but realized how late it was, so I had to stop (quiet neighborhood), but I have the tank up and the battery disconnected and charged for tomorrow. I'll have to pick up where I left off.

So, battery voltage:
not running: 12v, running: 13-14.5v

Stator voltage:
Running, unplugged: 50-70v with both prongs in the stator's plug, doing 3 combinations across leads, all should read about the same, correct?

Stator ohms:
not running: 1ohm while both prongs in stator's plug, checking across the leads. Checking with positive terminal across the leads while negative terminal is on battery should also be 1ohm, correct?

These guys use my same meter, its a cruiser bike but I assume this applies to my bike as well?:

If the stator checks out, at least the rectifier's plug is a lot easier to get to...
08-23-2013 2:32 AM
900rrHonda
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

Quote:
Originally Posted by bladeracer View Post
They should be 50-70VAC.
Lol I was smoking crack 100-150Vac lmao. That make a hard time on reg
and yea should be around 50vac+ on each phase :-)
Also should be around .3 ohm between each wires
08-23-2013 2:20 AM
bladeracer
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

Quote:
Originally Posted by 900rrHonda View Post
Shouldn't each phase be closer to 100-150Vac?

They should be 50-70VAC.
08-23-2013 2:19 AM
900rrHonda
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

Quote:
Originally Posted by bladeracer View Post
You need to measure all three phases.
68V AC sounds fine on that phase at least.
Shouldn't each phase be around 50Vac?

I was smoking crack min ago. Caught it after I hit post. -Edited-
08-23-2013 2:13 AM
bladeracer
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

Quote:
Originally Posted by Fuegoblade View Post
OK, got it started. At 5000rpm, I'm reading 68v from the stator. This is too high, right? What do I do now?


You need to measure all three phases.
68V AC sounds fine on that phase at least.
08-23-2013 1:55 AM
900rrHonda
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

You can rewrap your stator yourself for like 20$ in about 4 hours total if you order the wire and gasket and ready to do it. I did mine on my 900rr and have over 2000mi so far on it. 20$ shipped for the 18awg magnet wire. I didn't varnish it since wire was designed for oil etc and high temps!
Deff worth it! Way cheaper then buying new stator. Also installed a mosfet shindengin reg for 130$ :-( that hurt a little

68v? Outta each wire from stator?
08-22-2013 11:41 PM
Fuegoblade
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

I'm using one of these meters, by the way:

http://www.chemistryland.com/CHM130F...Multimeter.jpg
08-22-2013 11:20 PM
Fuegoblade
Re: '01 929: Losing battery charge. Stator? Rectifier? Aftermarket?

OK, got it started. At 5000rpm, I'm reading 68v from the stator. This is too high, right? What do I do now?
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