OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Robin Subaru Engines Thread diameter/pitch on Robin Subaru fuel tank?

Thanks for the additional information. I guess I will only know whether it is the older or newer size once I receive it. As it is a new tank I'm guessing it must be the M8*1.25*17, but I won't go out shopping for nuts until I know for sure.