Hi,
I think I may have a BS 60 Sport petcock I can send you. I cannot assure you that the rubber parts inside are still functional, but perhaps you can find the internal parts that may need replacing thru Richard or on eBay.
I have 2 60 Sports, but what I need is a good BS 60 Sport cylinder. I have several Bridgestones from 200cc down to 50cc.
( By the way, I think some other Bridgestones all used the same petcock as the 60 Sport...)
If you give me a mailing address, I'll see if I can dig out a petcock to send you, no charge. I just like helping out fellow Bridgestone owners. Maybe you have some extra 60 Sport part I may need and can return the favor someday.
Best regards,
Dale Harris
Port Orchard, Washington