1/4 turn output shaft at sprocket

While preparing to replace the sprocket gaurd I noticed about a 1/4 turn back n forth on the output shaft at the sprocket. . I could feel this while riding but attributed it to the chain.
Fix? The repair manual is vague. Thanks
Tried to load a video but won't accept mp4

There will be a little play at the countershaft. What you're feeling while riding might be the chsh rubbers are worn out.
Steve

If the transmission is in gear and the sprocket will move 1/4 turn, there is a problem. If the 750-4 clutch has rubber dampers and they have disintegrated, the output shaft might have some serious slop.

My apologies. I forgot to mention this is on a 900cc engine. 1/4 turn back n forth at sprocket output shaft while in gear.

1/4" or 1/4 turn? That's a lot. A video would help. I suspect it would be 1/4". Is there a lot of noise and can you pull the shaft in and out. With the sprocket tightened there should be none.
Steve

I did attempt to load vid in first post. Unfortunately my camera records in mp4 which is not supported on the forum.

You can upload it to youtube and then link it here. All it takes is a google account.

SWest wrote: 1/4" or 1/4 turn? That's a lot. A video would help. I suspect it would be 1/4". Is there a lot of noise and can you pull the shaft in and out. With the sprocket tightened there should be none.
Steve

In the pictures he posted, it looks like 1/4 turn. That would really worry me.

1981kz750ltd wrote: My apologies. I forgot to mention this is on a 900cc engine. 1/4 turn back n forth at sprocket output shaft while in gear.

The 900 clutch has damper springs. Even if all of them were completely missing, there would not be that much slop. I bet there is something broken in the transmission. It might be time to drop the oil pan and look for chunks.