I've had a couple of failed attempts at rebuilding vacuum petcocks. I thought the o'ring was wrong. I tried that. No help. Currently, I'm running some manual taps.
@GLJ has solved the issue. https://www.xs650.com/threads/81-special.65260/page-4
I have an unused diaphragm from Dime City Cycles.
https://www.dimecitycycles.com/petc...?fits-motorcycle=Yamaha/XS650/all-models/1981
I measured the pin at 18.14 mm.
I measured four OE diaphragm pins. 18.75, 19.06, 19.06, and 19.02 mm.
I believe the diaphragm pins in the kit are at fault. Be aware before you buy.
EDIT: It says in the description that the pin is 18.5 mm long. That isn't long enough. I should have measured first, then read the description.
@GLJ has solved the issue. https://www.xs650.com/threads/81-special.65260/page-4
I have an unused diaphragm from Dime City Cycles.
https://www.dimecitycycles.com/petc...?fits-motorcycle=Yamaha/XS650/all-models/1981
I measured the pin at 18.14 mm.
I measured four OE diaphragm pins. 18.75, 19.06, 19.06, and 19.02 mm.
I believe the diaphragm pins in the kit are at fault. Be aware before you buy.
EDIT: It says in the description that the pin is 18.5 mm long. That isn't long enough. I should have measured first, then read the description.
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