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We're just about ready to install the upgraded fuel bowls, but some of the old parts need to be transferred over first. Starting with the accelerator pump, the new rubber umbrella from the kit is pulled through the hole. Once the umbrella was in, the pump went back together just like you see it on the table: spring, diaphragm, and then the housing. Make sure to cut off most of the excess of the umbrella so it doesn't contact the float. This was one of the problems our carb had before. The umbrella was holding the float up and kept the needle from opening all the way, basically starving this bowl.