Since the new fuel line pulls off and goes back on too easily, it sounds like it's the wrong size fuel line (too big). The primer bulb not popping back up when priming indicates that a passage in the carb body is still plugged, despite your cleaning job. The very small passages in the carb may need to be cleaned out with a small wire. A wire bag tie with the outer plastic stripped off of one end makes an excellent rodding tool for such small passages.I'm presuming that you replaced that primer bulb when you worked on the carb, but if you didn't and the bulb is a brownish color and kind of stiff when you pump it, it needs replacing also. An old primer bulb that has gotten stiff and brown due to exposure to the gas and oil in it can also refuse to pop back out properly.

A SMALL shot of ether (starting fluid) in the carb will tell you if it's an ignition problem or not. If it fires and dies with the ether, then it's a problem with the fuel system, and not the ignition. If the engine has been sitting unused with fuel in it for and extended period of time, the problem will most likely be in the carb as the crap fuel that we are forced to buy these days with alcohol in it deteriorates quickly and also has a tendency to absorb moisture, which then causes a buildup of deposits in the carb. Once you get it cleaned up and running you need to use a fuel additive if you're going to let it set unused awhile between uses, or run it until it's out of gas. I use Seafoam in all my equipment to keep things clean in the fuel systems.

If, after all the aforementioned cleaning remedies have failed and you still have the odor problem, you might want to get adventuresome and try disassembling the door. On some dishwashers, removing the screws allows removal of the front panel, while on others it's the inner panel that is removable. Be very observant as to how it comes apart so you can reassemble it properly. Upon disassembly you will most likely notice a very nasty (and smelly) collection of food residue across the inside bottom edge of the door that is impossible to remove without door disassembly, no matter how many time you wipe the inside bottom edge of the door. Scrape off what you can with whatever tool you choose, and then wipe the rest of it away with a rag and hot water and Dawn dish soap, degreaser, etc. Then, after putting everything back together correctly, run the dishwasher on a short cycle to be sure that it's correctly assembled and that there are no leaks. In the future after this, always pre-rinse the dishes (rinse, not...

As mayer stated, replacing the valve would be the easiest way to go. If you're going to pull the valve out, you can then visually inspect the inlet and outlet ports to see if there are deposits. There are strainers on the inlet side of the valve where you may see the deposits, particularly the hot water inlet. If there are visible deposits, you could put CLR in a pan and soak the valve to try to remove the deposits. Only put enough in the pan to cover the inlet and outlet ports and not the electrical connections or solenoid.