Hello, Im new to this so I hope Im using the correct forum. The fueltank overflow breather on my Breva 1200 appears to be blocked. I have removed the tank to check if the pipe was nipped but all is ok. The breather is clear from the exit point back up to the Tee piece but from the Tee piece up over it seems to be blocked. I have tried blowing down it and threading a small wire but it seems to hit a dead end about 4 inches down. Overspilt fuel or water when it rains just sits in the well around the filler. Can anyone help. J.P.