Hi all

I have had my Savage X for a while now, and I have been getting about 10mins on 1/2 tank. Recently, I have noticed that I am only getting 5 mins on 1/2 tank. I have not changed fules/ajusted tuneing. I did find out the the rubber exhaust thing(the one that comes from the engine to the metal pipe, Joins the engine to the C shape metal pipe) had split, could this be the reason that I am having bad fuel ecconomy?The engine still idles steady and provides good performance (except recently has not been doing wheelies, but I think this could be a clutch issue).

Thanks for any help