An update:
after redone my valves and seats due to low compresson, 6-6,5 kg/cm2 (85 psi)
I took the bike for a run and it´s still without any power....
it runs fine at idle and up to 50-55 mph if I am gentle but it would not accelerate good if I force it and it has no power actually.
the bike has had this problem since I bought it this spring.
Checked the compression today and it was 13 kg/cm2 (185psi) so the valve job worked out just fine
K&N freeflow in airbox
half spacer
47,5 jet if I remember correct, need to verify that.
152,5 main, a bit uncertain there as well, have been changing a few times...
Dyna muffler, probably the california (cat) model, cause it has blued a lot at 5 inches from the downpipe.
the bike is a -97 and has 33000 km (20500 miles)
what would you guy´s do next??
/Thomas