GSXR-750 K6 Sticky throttle and weird airbox rasping sound??

[jonboy22]

So I was approaching a speed camera, took my hand off the throttle completely for a sec thinking I would scratch my nose as I went through the camera, and the bike carried on at the same speed!!

It only seems to stick just before being fully closed, so from 10% open to fully shut. I thought it might be something silly like the grip getting stuck on the switches but that's not it........so any suggestions??

The rasping noise kicks in at 6krpm in first, second and sometimes third and it sounds like the airbox going mental. If you push through to about 9k it goes away and the real scream of the engine kicks in. Does actually sound like a whole load of plastics resonating and sounding really horrible......Do any other k6 owners experience simillar noises??

Any help much appreciated.
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current bike: GSX-R 750 K6 stolen, found the next day in a van in Durham, returned to me 3 months later costing me my NCB and my excess...
last bike: GSXx-R 600 K4 - written off, now converting to track bike