It's strange my cam sprocket has not moved. Cleaned with Loctite Super clean, last time acetone on a cotton swab, then Loctite blue and correct torque.
I think my sprocket is a slotted (by local tuner back in the days) CB750 of later model that is much lighter. Full of holes. APE I got is really heavy!
I'll replace it with another Falicon slotted sprocket almost as light as my old next time I take out the engine replacing all studs.