Try this. I could not get the cap of of my Kioti remote by pulling on it either. Nothing worked. until I took an adjustable wrench and sized it to barely slide onto the metal shaft and then pulled up with the side of the jaws of the wrench contacting the bottom of the rubber cap. It almost fell off it was so easy to get off. I couldn't believe how easy it was to get off that way and how impossible it was to get off by pulling on it with my fingers. It is kinda like the Chinese finger stall thing, the harder you pull on it with your fingers the tighter it is going to grip the shaft. But by pushing it off with the edge of the wrench jaws on each side of the shaft, it came of so easily.