u have a bike that u just got so u need to do some checking.
first u need to pull the rad cap and fill it up. then start it if the head gasket is blown it will b pumping compression out the top of radiator big time.
more that likely the guy who had it b4 just did not get it full.
u have to loosen the bleeder screw (dont drop it cause it is non magnetic) and get the air out of the system.
fill tank to mark.
in Arizona i can not run the fluid at that level or it will push it out so i run mine close to bottom.
this problem may have been why he sold the bike. for what ever reason the dealer is useless.
if i were u i would replace the fan relay when u have the relay take a couple of pics and we will tell u the terminals to cross so the fan comes on and this will put u closer to solving your problem. numbers r 30 to 87