Have to agree with all of the above answers, have always ridden Hondas since 1968, twins and fours, and all have had this annoying characteristic. One of the reasons given many years ago was the fact that the transmission uses the engine oil, which once it is warm, is not so thick and gloopy as the old gear oils. A couple of my mates used to own early Minis and suffered similarly. Whatever you do, don't make the mistake of taking the slack out of the clutch cable when hot thinking that this might ease the problem, otherwise next time you start out with a cold engine the clutch will slip like buggery! Stay upright, Michael.