50Lou,
If you plan on keeping your orig lines, and there is no reason not if they are in good shape, you need to clean them out. Go get yourself some drug store alcohol and a syringe of some type. Push it into the line, let it sit for awhile and blow our with air. Cover the exit side of the line to keep the clumps from going all over. Then repeat until clean. This is the best way I have found to get all the junk out.
