I renew the carburators with a new set of needles and jets. All standaard. The needles I lowerd one click, pilot screw 3 turns ( both) out. This is second set of carbs. I already swapped them with a other set. Both sets I ultrasone ( clean in an electric bath) them. Rubbers on top are not torn.
Just to try and home in what's wrong, have you tried second set of carbs after pickups changed, and do they confirm same cylinder problem?
First the carbs and then the PU. Problem stayed. So PU were not needed but I don’t care because they didn’t look healthy. Cracked the were.
It is probably worth building up other set of carbs and swapping to see if same cylinder is misbehaving just to rule out fuelling problem, and then you can home in on all electrics.
if they were cracked then you definitely did the right thing to change them as this is an early sign just before oil ingress and failure of the pick-up.
I take the bike for a spin this weekend and run it clean. See what happens. After the I will come back to you all. For now thank you very much for you’re support, really great! Happy eastern weekend.
Good day tech helpers. I’m sorry for my late update but is was hectic last weeks. I have driven about a 1000km’s with the bike ( bin to SBK Assen) en the result is that the bike runs much more better than it did. It reacts on the throttle from low revs up to 7.500. I didn’t want to go higher. So for now I’m pretty satisfied till the fact that it still runs idle on 1.5 cil. You can hear the puffs in the exhausts. I don’t had the time to look at it after the SBK so I can’t tell you the solution unfortunately. To be honest I don’t know where to start, I’ve done so many thinks.
