Hi, I use my marching sax for concert too.. it`s a Yamaha YAS 23... but the neck cork wasn`t properly sealed on the neck and there`s a hole which allows saliva from the mouthpiece to drip down on my lap through the cork... what can I do to fix this?

Get a new cork. ie. send to the shop. but... depending on how bad it is, a strip of paper can help, but then again paper gets wet. Paper is only a short term solution. i`d suggest sending to the shop.

try tape

You should definately send it to the shop to get it fixed because a leak on the cork means intonation problems and more problems. The people at the shop are probly gonna re-cork it.