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Stator issues/replacement

Posted: Fri Feb 16, 2018 7:12 pm
by CPowell1994
Holy balls! :shock: Found my charging issue. Was just going to replace outer stator. Ordering a new rotor and gasket now.

Re: Stator issues/replacement

Posted: Sat Feb 17, 2018 4:13 am
by GeorgeSweety
"Holy balls! :shock: Found my charging issue. Was just going to replace outer stator. Ordering a new rotor and gasket now."

I think that would probably be the best option :lol:

Re: Stator issues/replacement

Posted: Sat Feb 17, 2018 8:36 am
by CPowell1994
It's pretty grotty :lol: New rotor and gasket should be here Tuesday. Then I'll finally fire it up and roll around the yard (needs new tires before it's on the road). I'm looking at the Bridgestone Battle-ax BT45s, Pirelli Sport Demons, and Pirelli Night Dragons. Anyone run these tires?

Re: Stator issues/replacement

Posted: Sat Feb 17, 2018 7:30 pm
by Folsoml
Yeah, that's pretty bad. You find that you need a new regulator/rectifier as well. A bad rotor can burn it out. :(

Re: Stator issues/replacement

Posted: Sat Feb 17, 2018 8:34 pm
by CPowell1994
What would be the symptoms of a bad regulator/rectifier?

Re: Stator issues/replacement

Posted: Sat Feb 17, 2018 9:59 pm
by Folsoml
Sadly, the same as what you were already experiencing--failure to charge. :(

Re: Stator issues/replacement

Posted: Sun Feb 18, 2018 6:58 am
by CPowell1994
So I should order the regulator? I mean, the bike runs and everything works, just doesn't keep the battery charged.

Re: Stator issues/replacement

Posted: Sun Feb 18, 2018 9:00 am
by Folsoml
If you've got the time to try it with the new rotor and stator, I'd wait.

BTW, did you test the current rotor and stator? I've seem some ugly ones that cleaned up nicely and still worked.

Re: Stator issues/replacement

Posted: Sun Feb 18, 2018 9:41 am
by CPowell1994
I'll try it with the new ones when I get them. The PO said that he had tested them and they were no good. Considering that, then seeing the condition they were in, I didn't bother testing and just decided to order new ones. One problem I'm dealing with now is getting the screws out that hold the stator in the cover. Someone was in here before me and buggered them up. I assume I need a good set of jis drivers. I have a couple jis bits, but neither are a perfect fit and they try to strip.

Re: Stator issues/replacement

Posted: Sun Feb 18, 2018 7:28 pm
by Folsoml
I usually try an impact driver right from the start. I find these screws are a pain in the ass under the best of circumstances.

Re: Stator issues/replacement

Posted: Mon Feb 19, 2018 4:27 am
by CPowell1994
Well I stripped one of the stator screws. Gonna try a stripped screw removal kit or helicoil.

Re: Stator issues/replacement

Posted: Mon Feb 19, 2018 7:27 pm
by CPowell1994
So I finally got around to using my extractor kit. Still can't get any screws out. Is there a trick to this?? I don't want to have to buy a new cover and everything just because I couldn't get three screws out. I'm tempted to just bust the stator up so I can get some vice grips in there. Don't necessarily want to do that though.

Re: Stator issues/replacement

Posted: Mon Feb 19, 2018 7:50 pm
by Folsoml
You can make a very effective penetrating lubricant out of a 50/50 mixture of acetone and ATF transmission fluid. Put some of this on it and let it sit for a bit. Sadly, on the CB650 I rebuilt, I never was able to get those screws free. :(

Re: Stator issues/replacement

Posted: Tue Feb 20, 2018 3:38 am
by GeorgeSweety
CP, you can try the flat blade screwdriver/chisel method, you need an old flat blade screwdriver that has the metal going all the way through the handle. You place the screwdriver on one part of the cross head but right to the edge of the screw, hold the screwdriver vertical and hit it with a hammer, the idea is to chisel a notch into the screw head, this may take a few hits to get a sufficient notch. Then you place the screwdriver blade in the notch at an angle, about 60 degrees, in the direction the screw undoes, then hit the screwdriver with the hammer. Here is a vid of a guy doing it but his camera work is pretty bad, but so is my description, between this guy and myself you may get the idea :lol:

https://www.youtube.com/watch?v=bsDys1aOGgY

Re: Stator issues/replacement

Posted: Tue Feb 20, 2018 4:06 am
by GeorgeSweety
I should also add, do it on a work bench not on a concrete floor or you'll scratch the hell out of the casing :lol: don't ask me how I know :roll: An extra pair of hands may come in useful to hold the case steady while you hit the screwdriver.