[Dukedesmo]

I'm not sure if it's the case with the 900 engines but are the crankshafts the same as the older carbie?

Asking because, on Desmoquattro engines when they changed from single-phase to 3-phase alternator they used a different crankshaft, such that you can't (easily) retrofit the 3-phase to older bikes as the flywheel assembly won't bolt on.

If this is the case with the 900 then, maybe the carbie flywheel with the pickups won't fit onto the crankshaft?

I have to add, I don't know if this is the case but you'd need to investigate - check the end of the crankshaft, threads, length, keyway etc.