DUMP THE FUEL NOW!
Do not run the engine with the fuel in that tank! empty the gas tank, drain the float bowls, change your fuel filter, and check your fuel pump. Check the condition of your plugs while you are at it.
Running diesel in your motorcycle engine WILL destroy it. Sportbike engines have such a high compression that the diesel will detonate before the peak compression.... i.e. engine knocking worse then you've ever known, not to mention the heat!!
BAD!! VERY BAD!!!