The sprag clutch looks a bit strange - don’t remember those yellow plastic looking cages on mine. Perhaps a non OEM “mod” by a previous owner?
That was puzzling me a bit, its a 2016 ex demonstrator bike I bought from a Ducati dealer with 500 miles on clock (now 30,000). The part number for 2017 model year was changed for these parts, I bet they had a problem with the plastic bits and upgraded, it was never recalled for this but I am going to check if it should have been.... Starting is a pretty harsh function and plastic bits in there have to be a little suspect don't you think?
New parts arrived. I bought a starter flange kit from Ducati... You will see its a metal caged clutch.. Now to put it all back together...
I know the Sprag clutch used to be a problem on Aprilia’s and you were always warned to have a really fully charged battery
Eventually, I got the bike back together. Made myself a flywheel holding tool for when tightening the nut from an old car brake disc. It now starts up straight away.