Changed fuel filter on 2002 Kubota L4310, removed filter cup, filter and o-rings. Cleaned cup and spring, replaced small o-ring, then put spring into clean cup with o-ring on cup. Reinstalled filter assembly but did not completely tighten, I turned fuel valve on let filter bowl fill with fuel, turned fuel valve off and tightened fuel bowl. Turned fuel valve back on/ open, started tractor ran a short period then tractor slowly stopped running/died. All help for this ( Diesel Green Horn) appreciated. Oh, I watch video from Orange Tractor talk and followed his instructions...apologize for long post.