well your tip using a Faset pump is worth while for consideration and sounds interesting.... hmmm, may even a cheaper option than the Mikuni one which trades for £60 quit (90-Euro) as new.
see I converted to the 2003/Enduro dash and lamp mask fitted with a simple small neat rally look alike digi DET-100 Cockpit with shift light, replacing the old pre-2003 analogue clock of my bike, even a 2nd hand KTM digi-speedo is still expensive, so I have to wire in a external single light in to the dash plate for the reserve low fuel switch any way if I gone to make that thing useful..... some how.
So that means, if I understand it right, what you are saying is that the Faset pump only starts running if the fuel level sinks down so that the tank switch indicates the fuel warning dash light to lit up, and at the same time prevent the carb from starving if low on fuel in the tank and levelling up the two sides of the tank, is that right ?
If so.... well sounds good to me..... wonder why KTM didn't came up with this ?
I was reading that the Mikuni vacuum pump would be a pig if run dry to start up the bike.
now what place around the engine or carb did you found to bolt the pump on your bike than ?
some thing else crossing my mind... its the fork spring... well the rear spring is
upgraded from 66/260 to 70/260 already, but what about the fork springs, my 2002 Enduro still has the 43mm forks and std settings, dose it makes a big differents for the springs having the 28Lt tank instead the 18Lt one ?
spooky

__________________
The trouble is that he was talking in philosophy, but they were listening in gibberish.