The tubing O.D. and I.D. sizes have been selected so fittings and clamps are not required. The easiest way to connect the different size tubing supplied together is to put a small amount of glue, like GOOP or Silicone, onto the outside end of smallest size and push it an inch or so into the next size tubing. This will keep any excess glue from plugging the line and make a leak tight solid connection in about an hour.
The small semi-rigid black tubing supplied is used to feed onto the chain. It can be run under the swing arm and attached with nylon ties. The black nylon tubing can be bent and set into a shape applying a small amount of heat, bending into shape, and then allowing the bend to cool. Bend the black nylon tubing to desired shape so that it drips oil onto the chain links. To hold it in place, once it is set in the right position, I recommend using a small amount of GOOP in the area of the nylon tie to keep the tubing from rotating.