Fixing Squirter Gremlins
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These are the parts of the accelerator pump. Notice that there is a redrubber flapper valve in the pump cavity in the float bowl. There are twoinlet holes under this. With negative pressure in the chamber, theflapper opens to suck in fuel. The spring assures the diaphragm willretract when the throttle arm releases the pump arm. When the pump armdepresses the diaphragm, the flapper closes and fuel is pushed to thesquirters. In the case of the so-called "pullover," vibration is openingand closing the flapper, thereby creating an "automatic" pump. View Related Article
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