Go to your local Liquor store and pick up a handle of Everclear or Golden Grain... 190 Proof booze.
Put it in your tank right before you run dry and you'd most likely equal out close to 85% alcohol. That'd be the same as E85 sold at many pumps across the US. E85 rates at approximately 110 Octane equivalency.
The bike should run on it, but I'd run it out and fill with unleaded 87 Octane as soon as possible.
E85/Flex Fuel vehicles have special rubber hoses and either use stainless steel or anodized aluminum components in the fuel system. Ethanol degrades standard rubber fuel line and corrodes bare aluminum parts if it's allowed to hang out for a while.
Additionally, the liquor should run your camping stove with no noxious fumes. Though you'll want to be VERY sure the flame is extinguished. In the sunlight, an alcohol flame is hard to see as it's very light blue.
2012 DL650 Adventure - Black
OEM Hand guards, OEM Heated grips, Stroma Center Stand and Shifter, SV Racing Frame and Swingarm sliders, Eastern Beaver power distribution, Skene Visibility Lights