Topic: Shoot me please :( oil gushes out of generator and fills stator cover

[checkflag]

Assuming you can find the Vreg/rec combo.  You want to remove the black and white wires that go to the alternator. And measure the resistance between them.  S/B around 5 ohms-ish.  Report your findings.

If significantly lower than that (be sure to subtract what your meter reads with the probes simply touched together), then the rotor is bad.

If significantly higher than 5 ohms, retest directly on the rotor slip rings under that cover.  If normal res. there then you have a wire or brushes problem.

If the rotor is very low ohms now, it can damage the R/R from the over-current it draws.

Let us know what you find.

Thats all good and all, but I do not know where any of those wires are. could you tell me where theses b/w wires are?
if you have the patience, A photo would be great. I am a visual person

[TwoTired]

I don't have a 650, only 550s and 750s.  Someone else will have to make pictures for you.
I know charging systems and how to read a wire diagram.

I take it you have no shop manual for the bike, either?

[checkflag]

i have the factory manual.. It vague. there are several combinations of black and white wires in the plugs
between the alt/rotor and the reg/rec

if these are the correct wires, than this is the result.
NOTE : with the leads reversed.. the reading was about 15

[TwoTired]

29 ohms is far too high. 

Time to check the slip rings for glazing.  And, the brushes for proper contact.
Need resistance measurement AT the slip rings.

Maybe polish the rings with 400 grit abrasive to make it bright and shiny.

[checkflag]

I didnt know what to connect what to.. red to white, black to black??? anyway, when i reversed the red/black leads I got a 15 reading.. but also to high.

I opened the alternator and I guessed that the "rings" are the opposing magnets.. 

Placing the leads between them, the #'s went all over the place. it was khaos. Maybe I did it wrong.

[TwoTired]

Follow the wires into the alternator cover.  See it attach to two spring loaded brushes.  See where the brushes push against the copper rings on the rotor?  Those are the slip rings.  If they aren't copper colored, then clean them with the 400 grit until they look like copper.  Make your resistance measurement.  Report findings.

Those slip rings deliver power to the alternator field coil.  The field coil is an electromagnet.  The strength of the magnet determines the size of the magnetic field that creates power in the stator.  If the field coil resistance is too high, you will get low/no power output from the stator.

[checkflag]

ok.. thank you.. see,I was way off target..

I will check this out.

[TwoTired]

Here's some pics...
http://forums.sohc4.net/index.php?topic=30602.msg580514#msg580514

[checkflag]

As requested.. I am reporting back... and the results are...

001.0  between the rotor slip rings..

[lowmileage]

   shoot you  .  Can't oblidge unfortunitely  .  The government doesn't want me to have a gun  .

[TwoTired]

As requested.. I am reporting back... and the results are...

001.0  between the rotor slip rings..

If that is a 1 ohm reading between the two slip rings, you will need another rotor.

It does contradict the 15-29 ohm reading you reported earlier at the white and black wire.  The two readings are supposed to very nearly the same.
You should also check ohms from brush contact to wire end, either white or black, each brush.

Maybe the continuity loss along that path saved your R/R?  Do fix your rotor before you hook up the R/R to it.

Cheers,

[checkflag]

If that is a 1 ohm reading between the two slip rings, you will need another rotor.
It does contradict the 15-29 ohm reading you reported earlier at the white and black wire.  The two readings are supposed to very nearly the same.
You should also check ohms from brush contact to wire end, either white or black, each brush.

Maybe the continuity loss along that path saved your R/R?  Do fix your rotor before you hook up the R/R to it.

Cheers,

I know, the continuity is strange. Maybe I did the b/w wires wrong.
So.. about this brush contact to wire end. I dont know where to look for these. (sorry)

I know the brushes.. but will I need to remove the stator for the wire end part?

[TwoTired]

Each wire black and white connects to its corresponding brush.  You need to place the probe on a brush and brush and measure the resistance to the end of the black or white wire.  Then do the same with the other brush.

The stator mounts in the cover.  You can access the brush ends with the cover removed.  I don't see why you have to remove the stator from the cover.