Monster S4 clutch noise

[Desmo Dreaming]

Hiya peeps,

My Monster has recently started to make a high pitched 'wah wah wah' noise at low RPM in most of the gears i've tried.

My first thought was a pressure plate bearing but I installed a new one over the weekend,
(including an Oberon slave & the new style anti-spin push rod)

I was hoping it would go away once the new bearing was installed but sure enough, once the bike gets hot after a run and usually just as I'm riding through town, it returns with bloody 'wah wah wah' high pitched harmonic type sound. I appreciate it's hard to convey a sound to someone but I don't know how else to describe it lol.

As soon as the bike speeds up or I rev it or pull the clutch in, the sound goes.

Does anyone have an idea what is going on please? It's driving me mental.

Cheers