Carbs fixed

After having the carbs off again, I have found the blockage that was causing the lean mixture. Well actually I didn't actually find anything wrong, but I stripped them down again, took all the jets out, and made sure they were clear. I worked out that the blockage must have been between the main and idle jet chambers. So I got some welding wire and pushed it though carefully, with lots of carb cleaner. Although I didn't see any dirt come out, it solved the problem. Then engine runs much better now, very smooth and with much more power.