If your cable is long enough then you can always create a new cable end that matches what your new carb requires. If you have the option to purchase a new cable that will just plug and play then jump on it. Otherwise, get a board of hardened dry wood, oak, hickory, walnut, persimmon etc. Then depending on how the cable end needs to be oriented, in line with the cable or 90 degrees to the cable, you then drill a hole either down through the face of the wood the diameter of the cable end you need for an inline cable end or drill a hole in the side if the board the diameter of the cable end you need and as deep as the width of the desired cable end.
In either case the hole needs to closely approximates the size of the cable end. For the 90 degree cable end similar to most brake lever cable ends, after drilling the hole into the side of the board you will need to drill a cable size hole into the middle of the tunnel you previously drilled to be able to insert the raw cable into the cable end you are about to create. Mount the board in a vise or in a secure method so that the larger hole is vertical. Get some silver solder and a propane torch and some solder flux. Force as much flux into the hole as is possible. Fire up the torch and heat up the hole and flux and then begin to melt the solder into the hole until its full of solder. Quickly heat the cable end and then insert the cable end into the molten solder and hold it in position as it quickly cools down.
Once cooled it can be cut out of the wood with a pocket knife or a wood chisel. Done right its ready to use. If need be you can clean it up with a file or a dremel tool.
Cable ends made this way are very strong.
