Did the setting and calibration while the front tyre was changed ( talk about efficiency!). Opened up the valve clearances to .15 and .20 mm. The plugs were pitch black, so the TPS setting had been far too high. I left it a tad over the spec, it's now 175 mV. The bleed air srews were open 1,5 turns! and I started with 0,5. However, the bike started running irregularly on low rews, so I opened the bleed screws to 0,75 and the TPS reads 480 mV on idle. The bike runs perfect but I still have to wait and see if I get any noticeable increase in mileage.
I'll have to do a dyno run some time soon before making further changes to intake/exhaust and/or buying a PC.