Quote:

Will the electric pump push fuel through the mechanical pump when the engine is not running?


No cuz one valve has to be closed when the other is open, tho an elec pump would likely pressurize the mech pump sufficiently so you wouldn't need to hand prime anymore. (& a mech pump will pull fuel thru the elec pump even if the elec pump ain't running) so you might be able to use the elec to help prime it tho I ain't sure if the elec would up the psi at the carb enough to need a reg. Consider this a BTT & wait for experienced others to chime in


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