I'm guessing here but is it maybe the plug for the O2 sensor. Has the black end been plugged with an O2 eliminator?
As Colin has already said; If you’re running a power commander or Bazza, you should disconnect it and plug in a 02 eliminator otherwise your get a FI warning light. If you don't have a PC or Bazza fitted, yes you will need to connect up the 02 eliminator. Link for one if you need it; http://www.ebay.co.uk/itm/Oxygen-o2-sensor-eliminator-Honda-CBR-1000-RR-08-on-/261197554011?pt=UK_Motorcycle_Parts&hash=item3cd096615b
I'm probably goin to fit Bazzaz but not sure if il do it straight away now. Might jus try get it out on track and fit that at a later time. Will I loose power without an elimator
O2 eliminator plugs in on the left hand side of the frame on the rr8, I used a 50p resistor on mine and its fine, I had to disconnect them 2 plugs when fitting an r&g tailtidy.
Oh it's just a resistor. Il get another one of those. I'm goin to stick a resistor into the steering damper plug ? Will be fitting a gpr damper