Z1OwnersClub GB

Hi having got a bike in bits , I am really need help with my bike, putting on my new front drive chain sprocket I am finding that the splined shaft does not protrude enough to fit anywhere near the locking washers splines ?¿ So is my sprocket to wide or the output shaft wrong , really fed up took off the selector cover damaged new gasket to look further, why is this bike fighting me compared to the Hodna I have lol

Got Some photos?

Gus

Spose the first question would be does the old one fit fine and is it plain or shouldered it , is it the same as the new one in terms of thickness and is the plain collar sitting all the way in the output shaft oil seal, oh and post some pictures and I am going to move this to bike help