I JUST BOUGHT A NEW AMERICA 2 WEEKS AGO THE CHAIN WAS REALLY SLOPPY ABOUT 2" PLAY. I ADJUSTED IT TONIGHT TO ABOUT 3/4-1"PLAY TORQUED TO 65LBS WENT FOR A RIDE, IT SEEMS LIKE THE BIKE RAN FINE BUT THE MOTOR SEEMED HOT TO THE TOUCH OILS FINE IS THIS UNUSUAL? YOU GUYS KNOW MORE THAN I DO...THANKS