I have bought a honda vf750fd it has 14k on the clock. I have been told it has the mod to the oil feed to the top end. Does any one know how to check this or what to look for ? It is running well and looks well looked after. There is a honda oil additive does anyone know what it is called and where can you get it. Hope someone can help. I have a workshop manual but it does not mention either. THanks Biffo