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Discussion Starter #1
I'll try to be as detailed as possible here. First the basics.

-1350 miles on the bike
-never tracked
-broken in, first service complete
-zero previous issues or indications
-OAT 82'F
-water temps time of occurrence 184 after 20 minute sit, prior to that low 200's (210-214)

I rode in search of different riding boots today. I've had the bike since January so today's ambient was the highest I've experience so far. 95% of this ride was on the highway. I exited the highway and then rode about 4 miles in <40mph traffic. Water temp increased to about 214. After 20 minutes not finding a solid boot option I left for lunch, rode another 10 minutes on the highway, parked the bike, left the fan on for a minute or so and then went for lunch. Temps about 200 or so at this point.

After a 20 minute sit, I fired up the bike, water temp had cooled to 180'ish. The bike started normally but had an extremely lumpy idle. I though it would stall immediately but it didn't. I managed to get moving about 30 yards and when I pulled in the clutch to stop, the bike stalled. It started again without issue but at low RPM, the fueling was a mess. The idle was off, and the bike seemed like it was going to stall at any moment.

I rode about 1/3 of a mile and pulled into a gas station. While I didn't need fuel, I decided to go ahead and top it off and take a moment to look around. When I removed the fuel cap, it was like opening a can of Coke. Clearly there's an issue with the fuel venting system. I have never experienced this with the bike before but I've also been riding in relatively cool temperatures so perhaps the higher ambient heat is creating some vapor issues. I'm really not sure.

After fueling, the bike was perfect. No issues. Rode 20 miles home and called my dealership who offered to come and pick up the bike tomorrow since I'm leaving town in the evening. I don't expect this to be a big deal but I do think it could be related to the issues some guys are having with starts. I will update this thread when I hear back but I suspect that will be the better part of a week.

Now, before the haters let lose, I'm not very upset about this. Making a hight performance machine that gets 100mpg and makes no sound is quite an undertaking. Euro fueling issues have been problematic for more than one bike manufacturers recently. I'm more than happy to give Ducati and my dealership time to get this right. If the problem persists, then I'll take issue.
 

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... When I removed the fuel cap, it was like opening a can of Coke. Clearly there's an issue with the fuel venting system. ...
Can you clarify - was it the fuel in the tank that was "carbonated" - or did some "carbonation" come from the vent hole inside the cap?
 

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Discussion Starter #3
Can you clarify - was it the fuel in the tank that was "carbonated" - or did some "carbonation" come from the vent hole inside the cap?
I doubt there was anything wrong with the fuel. When I described the issue with the dealer mechanic, he also thought what I assumed, that there's an issue with the fuel system venting mechanism. For some reason, suction is developing in the tank of my bike causing fueling issues. The cause of which has yet to be determined. Suction opening the tank means the bike is starving of fuel because of that negative pressure.

I'm very confident they'll sort it out but I also think theres a reasonable chance others will have issues.
 

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Discussion Starter #4
Was this thread modified? I posted a response that's no longer here yet I deleted nothing?
 

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How high do you normally fill your tank? The new Panigale's have a carbon filter that can cause starting issues if fuel gets in by over filling.
 

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Discussion Starter #7
How high do you normally fill your tank? The new Panigale's have a carbon filter that can cause starting issues if fuel gets in by over filling.
I'd say that I'm very careful filling it. Like most of us, I dont want fuel spilling out so I doubt I've done something incorrectly. Perhaps, but I doubt it. Also, my bike has never had starting issues. Even when it stalled yesterday, it started without issue.
 
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