st50 drive sprocket wobble

honda st50 1971
i was doing some final inspections before ordering some parts and noticed that i can move ,wobble the final drive sprocket on the shaft the lock plate is in place
is this ok or worn

Hello Mark54, and welcome to the site.

This "Wobble" is perfectly acceptable and normal. The way the sprocket is locked onto the shaft is via a quarter turn and bolted (plate.d sprocket) The sprocket is not designed to be fixed rigidly to the shaft, as it would shear quite quickly because of the way the gears operate. This is way there are rubber cush drive absorbers located within the rear hub as well!

Hope this helps
Happy new year Si