are you saying if i simply adjust the idle mix it will solve my problem? i will test the throttle/rev responce on way home. it has had dynojet (proper job done) with previous owner, since then i have changed the exhaust (and not adjusted anything else) and im guessing airfilter was changed in last service. ------ to: caretaker i ragged it into work as suggested, in 3rd gear (5 speed) speeds between 70mph (revs 5.5k)-125mph (revs 10.5k), and i didnt get any juttering, but i also didnt need 2 stop at any junctions today as it was clear and only green lights. generally did feel better at lower speeds tho.