PEDAL TO Z BAR ROD

The minimum distance between the oblong holes in the peddle rod should be enough to return the pedal to just "over center" for a B&B style clutch when adjusted correctly. That is where the "over center" spring takes over and lifts the pedal to the up stop.
Check for loss motion in the torque shaft through the fork, a deteriorated / collapsing washer on the clutch adjust rod, or possible loose / bent fork pivot. Also watch the pedal pivot area for worn bushing. Watch it while a helper works the pedal up and down.