hi everyone, well after getting the k3 started after 28 years in bits i have a problem.it will fire up for a few seconds using easystart but will not keep going.It seems to be a carb problem, the float chambers are full of fuel but dosnt seem to be getting through to the cylinders.I took the carbs off again to clean thoroughly, they seem to be quite clean anyway,but the jet that pushes into the bottom and has small holes in the side seems to be blocked.Should the central hole go from top to bottom as i cannot push a wire more than a few mm into either end, i have tried 3 up to now with the same result, including one from a spare carb.I gather carb problems are common on these bikes so any help appreciated, Mick.