Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
There is a lot of overlap of jets when going from idle jets to main jets, so at 3500 rpm it could be either jet. Nigel (K2-K6) posted a brilliant graph showing the overlap but i can't find it again now. Also, as long as the vacuum gauges are showing parity, it doesn't matter what the reading is within reason.
An additional point to consider, the airbox on these can have different configurations I believe from other's experience on here. Deltarider? They have a different air entrance to make some market models quiter I think, these are paired with smaller main jets, from memory, and run at slightly smaller mains it seems.
Can't read that as it's in german but I'm wondering why it's saying the bike has 2.15 rims front and rear when it came with 1.85 rims from the factory. Unless of course you've changed the rims at some time.