I had the vitos needle in it had every jet through it from 340 to 230 and they all seem the same when you first kick it it starts then at that point the first 30 rotations enogh for first start and one crack of the throutle it revs then after that first rev it runs like s**t ..... LOL so im starting to think it might be electrical like main brain box. or charging coil ... in the tech book it shows both black red wire off coil and white red go to brain box the black should test showing resistance and it does not im thinking it might be bad and or the breain box white checks ok and i dont know if it is possible for that to bleed through in the brain box because of short from the black n red going (charge coil) but i do know if i dont get it in 2 weeks im going to bring it in and admitt defeate.....