Gas Cap for Sears Roper

[j57little]

Anyone have any experience or guidance regarding a gas cap that will fit a Sears Roper fuel tank?

Thanks!

 

[chipper]

A cap from the 97cc DB engine seems to fit well , I never tried it with fuel in the tank but again it seems to fit perfectly !!

 

[creia]

Maybe this one would work?
Vintage Stainless Gas Cap Mini Bike Moped Wards Sachs Puch Tomos Sears Etc | eBay
Michael