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Connect one pipe from the 4mm diameter fitting on the bottom of the fuel pump, to outside. That
“emergency hose”, will bring far from exhaust or engine department, the eventual leakage of fuel.
The system carburettors will be re-checked completely, taking care to protect the components from
any kind of impurity, especially during installation and then make sure you have made all the
connections necessary to provide proper function.
Example of installation scheme, work together electrical fuel pump:
1. Fuel Tank
2. Gascolator (filter and water trap)
3. Pierburg electrical 1bar Fuel pump
4. Flygas mechanical Fuel Pump
5. Optional: Restrictor Jet for air bubble (not plus of 1mm hole diameter)
6. Check Valves
7. Regulator Fuel Pressure
8. Carburattors
9. Fuel line return to tank (internal D. minimum 6mm)