Cushioned front sprocket????

[Harveygk73a]

Hi all
Have a few 89' gsxr400 's and all have different front sprockets on
I do get quite a lot of chain noise on my main SP and the other don't have too much , and I think it's to do with the front sprocket being steel only ( JTF 433 14t )
The last gsxr400 I bought was fairly recently as a new project and when I took off the sprocket on that one it was cushioned and had markings 32C A4 on ???????
Does anyone have any idea how to either :

Quieten chain noise ( help my bleeding ears)
Source the 32C A4 sprocket ( as that was pretty quiet)

Thank you all