Stator Causing Stalling?

[scaramanga]

correct, this was an offline test to determine if the stator insulation is problematic.
If the charging system is working properly you should be able to disconnect the battery ,after starting ,and the bike should run normally. If it stalls further investigate charging system. If it runs , battery disconnected, then wiggle connectors and wires with the hope of a stall.

my bad

[MadDuck]

Much & great thanks to all who took the time to reply here.  You have not only confirmed & validated what I have already suspected but gave me some new ideas as well.  I didn't mean to bait the group but the bike is not a Ducati although what we are talking about is pretty much universal stuff. The diagnosis should apply regardless of the make or model.

BTW, I also posted this over on Ducati.ms and didn't get a single response.  You guys are the absolute best!!

We'll see how this plays out later.  

[MadDuck]

Here's how this played out. I wanted to post back on this because all too often threads get started and there is no closure. The OP will almost never report back with what actually happened or what fixed the problem.

Anyway, this is almost like that.

Dealer ordered up the stator and installed it. It took 3 months total time to go through this.  Said the old one was burnt. Now this happened to my friends bike and I can tell you only what he told me. There has never been any mention of charging rates. No mention of low voltage. I haven't seen any old parts and the dealer also told him they found sand in the engine when they replaced the stator. That's right, you read right, sand.  WTF??? No one knows how that got in there unless someone was trying to sabotage the engine.

My friend never picked the bike up from the dealer.  The dealer made him a low ball offer on the bike and he went for it. Doesn't own the bike any longer.  No test drive home to see if the repair actually worked or not. He was just disgusted with the whole ordeal and wanted out.

Not the best ending.

[suzyj]

Oh that sucks. I really feel for your friend. One of the reasons I do almost all my own work on vehicles is that in the past I've had some really bad experiences. I think there's some serious sexism with dealers, and when a woman drops a vehicle off for service they can't help themselves.

I bought my car new, so took it to the dealer for service so they'd honour my warranty if anything went wrong. Every single time, they'd come up with spurious bullshit. "Uneven tyre wear" when I rotate my tyres every 5000km. "Needs new brake pads" when I knew the brakes weren't even half worn. The one thing they didn't do though was actually change the air cleaner. My car threw up an emissions fault soon after the 40,000km service. Having very little trust, I had a look myself. Turns out the just changed air cleaner was absolutely filthy. They certainly hadn't changed it at the 40,000km service, and probably not at the 20,000km service either.

So when I bought my duc, the dealer went on about servicing, and I politely nodded. He gave me the keys and the paperwork, I got on, waved, and never went back.