if you run straight water, not only will your block corrode internally, but your water pump seals will blow out. antifreeze has oils in it that condition the seals in the pump etc, as well as protecting the metal parts.

 

Did you take off the gas tank and actually open the radiator cap to see if there was any coolant in there?

 

No I didn't take it off I was looking in the reserve tank. How do I go about taking the tank off? Is that nessary to do to fill the radiator? Thanks

 

Yes absolutely. Take off rear side covers,then seat. Tank has 2 bolts. You can place tank on rear subframe
if you undo fuel filter and fuel line from their stays. Then you will see radiator cap in front of air box. I use some good old Prestone.

 

this website has a good parts fiche that can help you see how stuff comes apart:
www.bikebandit.com