Is it common for the rad fluid to puke out onto the right side pipe?

 

yes it happens on mine all the time. I ran a hose from the rad overflow down the frame

 

Yep, just happened on my buddy's this past weekend. It happens when it's hot out and your running hard.

 

scares you at first it did me

 

Though many deem this common, it is not a good sign. It means that you are overheating the bike. You need to look into ways to keep it cool. The best are a set of cool heads and an aluminum water impeller. Other things like a bottle of radiator sub-coolant (can be bought at any car parts dealer, usually called radiator ice or something similar) or a line intercooler can help too. I would definitely check your water pump. Most banshees that have overheated wind up melting the teflon gear that runs the impellar and must be replaced in order to ever run cool again.

~HoundDog