Progress report - activity interrupted by storm Arwen - too windy,cold, snowy to do anything at the moment, as the rotovator is in a shed at my allotment. (And my limited engineering skills are further hampered by deteriorating eye-sight, joint problems, and general frailty of the aged). But before the storm, in the fairly benign days of late November, I took out the air cleaner, and found the outer sponge layer had broken up, and the paper filament inner seemd soaking wet. I tried running it without the air cleaner, and the symptoms remained exactly the same as before - reluctant start, then would only keep running on full choke, and plenty of white / blue smoke. I have got a new air cleaner, new spark plug, correct Honda oil, andd carb cleaner off the internet. Haven't fitted them yet, as I want to empty the fuel tank first. Might manage that later this week, but I'm thinking there's currently no desperate rush, as I won't be wanting to use it till late February or March, depending when the ground becomes workable in late winter or early spring, when I shall be hoping to strim and rotovate some 15 poles of green manure spread over 3 plots.... I will report back again....