Well over the last 2 little while I have learnt little bits of information on the subject, but fear that I have just enough information to be dangerousâ€¦ Soâ€¦ How do you make sure it is right? What are the symptoms when it isnâ€™t? When itâ€™s flooding at idle is easy. It sputters and coughs and carries on, then you give it a fistful and it starts to behave when the revs are upâ€¦ But is there anything else that also gives these symptoms? I went into the bike shop after having the carbies sorted saying itâ€™s still gurgling off the line and not really giving me the punch I expect. And they fix it by leaning it out a littleâ€¦ How much? I donâ€™t know? If it was to much what symptoms should I be looking for? (BTW It is still a little gutless but so very responsive now) Can any one help me here? And more to the point can any one help me referring to a ZZR250 specifically?