I assume it has schrader valves. If so remove the valve core with a valve tool. Available at any auto parts store for about 2.00. Then as stated above start rolling the tube from a point directly across from the valve, rolling in the direction of the valve. Once the tube is tightly wound and you have arrived at the valve, reinstall the valve core while still holding the tube. Then you can re-wind the tube starting at the valve stem, just like the way it was boxed. You should be ready.