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Fuel-System Pressure Check
![Fuel-System Pressure Check](https://membership.modelairplanenews.com/members/files/2024/06/Fuel-System-Pressure-Check.png)
On your workbench, pour about 1 ounce of fuel into a tank, attach a fuel bulb and pump away. Check to see that fuel is flowing into the overflow bottle, then pinch off the line at X and pinch the overflow vent. Hold this for a few minutes to see if the system retains the pressure; if it does, install the system in the model.
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