Hopefully you can remove the driven pulley on top of the transmission and access the cover (ref 18.) for the detent ball (ref 3) and spring. Sometimes they get rusted up and can be taken out cleaned and lubed. You first want to be sure that the belt stops when the clutch is depressed. If a will fit belt was installed, that could be an issue.

tomplum
I am not ignoring your post. I'm waiting for my
son to come by to help.
I think the belt is ok but the other is a little harder
to do. My old bones sort of hold me back.
When we do check I will follow with another post.
Thanks

After removing the drive pulley I had second thoughts about
removing cap to view spring and ball.
I have had bad luck where springs are involved. They
usually fly way and become lost.
Hopefully I can make it through the mowing season and
then take it to a shop.
Thanks for your help