Testing stator resistance static?

[stopintime]

I have the side cover off and see a burned stator (12 of 18 "posts" are black)

Doing the stator resistance test, Ohms from yellow to yellow a.s.o. That shouldn't be a problem while the cover is off?

The other (static?) test, ground to yellows...... can it be done while the cover is off? Connect it to the engine with a wire?

[stopintime]

Here's my meter.

200/"sound symbol" gave 0.6 on all three yellows

20K showed 0 .  before connecting. No reaction when connecting the yellows.

From ground to yellows gave no reaction either.

[ducpainter]

PM Howie. He has all the numbers in his head.

[stopintime]

PM Howie. He has all the numbers in his head.

Good morning. Thanks, I have now done that.

Measured again, at 200/
0.6 between all two and two yellow combinations

Still at 200/ black against several places in the side cover itself, stator core, stator mounting bolts and the red to all three yellows. No change. Does not move from 1 in the display. Tried all ohm settings. No reaction.

[Howie]

OK, Ducati has no spec for stator resistance.  You want to see continuity and equal resistance.  The number will be low.  Cover on or off doesn't matter.  Did you test stator output?  Each yellow wire should produce 28 -33 volts at about 3000rpm.

This chart is a good guide  https://cdn.shopify.com/s/files/1/1091/5694/files/fault-finding-diagram.pdf?235929069374954073

Now that I think about your photo, even if everything tests OK, at some point the lacquer that insulates the winding is crispy and will eventually fail.  I wouldn't want it to fail on my trip to Italy.  Less than $200 from Ricks   https://ricksmotorsportelectrics.com/l/aftermarket-stators

[stopintime]

Stator was new last year. So was the starter. R/R too.

Water killed the starter, the mechanic thinks. Water in the starter = water in the stator?

Any idea why I can't get results from ground to yellows? Shows 1 and does not change. From several spots in the cover and on/by the stator.

[stopintime]

I don't know what to look for, but near where the wire goes through the starter shell, the oil looks more like grease - grey stuff that isn't possible to see through.

The brushes and stuff seen through the shell


The thing


Some of the grease looking oil


another shot of the grease looking oil


Brushes and stuff

[Howie]

I'm not understanding your yellow to ground 1   Stater windings to the body of the stator should be infinity.

All I can think of with the starter is a combination of engine oil and debris, but I don't see a path for it to happen.

Maybe we should call koko64 to the red phone?

[stopintime]

I want to perform the test that is black on ground, in this case the cover or other suitable ground (please suggest where) and the three yellows. I have the digit 1 in the multimeter display. It does not change while doing the test.

Didn't we/someone settle on 0.6 ohm as a good result? The Electrosport mentions much higher numbers.