X2 Three pumps of the bulb and mine starts right up even on the coldest days.
Would one of you guys with the primer bulb post a picture of where you located the bulb.
I was involved with Rutting Rhino back when he was developing this relocate and re-plumb scheme. You will see a check valve just before the tee feeding the carb. This helps prevent the fuel from draining back into the tank to some degree. It is pretty effective over a few days, or maybe weeks, but eventually air bubbles form and it slowly drains back into the tank. You also see a line from the intake manifold to the pump's vacuum port. In this particular layout you see a short stub with a plug in the end. Doing it this way requires a very low pressure regulator down at the outlet of the pump to ensure that the carb does not overflow when pressurized directly like this. My preferred alternative is to extend that stub as a return line to the tank. That return line should loop up to well above the carb before going back to the tank. This will essentially keep the fuel pressure at about what you would see with a gravity fed tank at about that height, which is what the carb was designed for. You also see the fuel filter sort of hiding behind the frame member alongside of the tank.
I'm going to be re-plumbing with Tygon LP-1100. It has an inner layer that is good for up to E-100 fuel. Some of the other Tygon formulations cannot tolerate Ethanol. Your link is to that formulation and others that are good for up to at least E-10.