Originally Posted by Girthy Knobkers
Thanks, I understand that BMW is really good at manufacturing a part that works on many bikes and that hole might be something that on another bike has something in it but the 800 never did. Knowing would help eliminate the reasons for this skipping at 1/3 of a tank or lower...
Your pump is probably overheating as the fuel level drops; the fuel is also used for cooling the pump. Many references to this symptom and cause on the forums.
If there was nothing in the tank, I doubt your pump is missing anything.