Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
I swear the bloody fuel in the Uk is getting worse and worse. Somehow I think the ethanol (in addition to knackering the rubber components) affects the float valves on our vintage carbs...
New float needles and seats are worth fitting if the tiny springs are week
If fixed they are perfectly reliable. Got 180,000 + out of my originals with no more work than the odd redex treatement if thd carbs started leaking, which was not that often, and genrally only when the fuel tap was left on when standing, only had it overflow when on the move a few times, redex in the fuel for a tankfull and running the last half mile with the fuel off always cured mine, for at least the next year. They genrally only gave issues if the bike was stood for a few weeks or more, used daily they were better, my 550k3 carbs gave better economy but more issues.