Clean the1 liter jar clean, and the pre-drilled lid is clear of any gasket material. Glue the two previously-drilled plates to the lid. Thread a length of silicon hose from the top of the lid down through the plates and secure them. Set the lid assembly aside. The electrolyzer will end up as the heart of the system.
Pour approximately 5 ml of the baking soda in the jar. Fill the jar with water (do not fill all the way to the top.) Screw the lid on the jar, insuring that the two plates are covered.
Secure the electrolyzer vertically inside the engine bay. Use metal "U" brackets, with rubber spacers, to insure that the unit does not vibrate once positioned inside the bracket. Up to 1000 cc you can use a single electrolyzer, however, if your engine is larger than this, you should install another unit per 1000 cc.
Check to be sure that the unit's position will allow for ventilation when running. Identify the vacuum hose on the engine and drill a hole in the diameter of the electrolyzer outflow hose mentioned earlier, and push the end of the electrolyzer hose into the vacuum hose.
Connect the electrolyzer to the battery. Using a length of electrical wire, connect one pole at the top of the electrolyzer. Then, connect the other end to the negative pole on the battery. After this, connect another length of wire to the other pole on the electrolyzer, and connect the other end to the positive pole on the ignition. Using a third length, complete a circuit buy connecting the ignition's positive pole to the positive pole on the battery.
Remove all tools and other extra parts, then start the car. You should be able see the electrolyzer liquid beginning to burble in the jar. Initially, the engine will run roughly. However, after about 30 minutes of sustained operation, however, the engine will smooth out and begin to run normally.