I have an 1984 vf750f just finished building the bike , carbs have been rebuild clean ajusted but know the idle stays around 3000 rpm and takes forever to come down i ajusted pilot screw with the honda shop manuel it seemed to be running better with the basic ajustement of 2 1/2 turns outwards if anybody has an idea or has encountered this problem feed back would be nice . And oh yeah do the oil mod kits still exist for these bikes