Hi sangalfie,

It could be the gasket, you may get away with nipping all the screws,
crack them all off first then tighten in a, every other one sequence starting center bottom.
Heres me making and fitting the gasket.
http://www.triumphrat.net/vintage-te...ket-video.html
It could also be the seal behind the clutch.
If its only a hanging drip don't worry about it