F800S cutting off under power

[druss12]

I have a 2007 F800S that will randomly shut off. A year ago it seemed to only occur when cold and a few miles into a ride but it has happened twice in the past month 50+ miles in a ride. It happens when slowing down, pulling off an exit or coming to a stop. Can anyone offer an opinion to what's causing this or what I could check?

[PGlaves]

Check for vacuum leaks at the small hoses to the throttle bodies.

[AZ-J]

My F800S was declared a lemon due to this issue @18 months old. NA could not fix it, it was dangerous, and I was paid well by them.

[druss12]

Could you can me some more history around what you tried or what the dealership replaced@

[AZ-J]

I cannot remember all the acronyms but the third visit, the main network (CanBus) was replaced. Part of the problem since I was the first, BMW (neither dealer nor NA) could reproduce the problem (it took about 1-2 hours to surface). Finally, my dealer acquired a dyno, and 2:03 (two hours and three minutes) the bike shut off. That was the fourth visit, and since NA would not replace the (excuse the try) BSK, they bought it back.

The first time, and the second they replaced fuel filter and air filter plus ignition interlock for the second time. Nothing helped.