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billie_morini wrote: 02:56 pm Mar 21 2025 Oh, sorry. Didn't see they are new fabrications, let alone from Malya production. If desperate, then I'd try them. Possibly until them, I'd continue looking for a used one within the USA.

billie_morini wrote: 12:23 am Mar 22 2025 Vintage: If you have time, then look for used. If you don't have more than about 2 5 weeks (approx. shipping duration from Asia), then by the new ones from Maylasia. This part normally doesn't receive much wear. I think I'd be happy with new or used.

As far as piston, piston rings, and cylinder you have, they can be re-used. I'd look at them very closely. If they look promising, then I'd measure ring gap. Also, accurately measure the cylinder since you've got your hands on the disassembled cylinder. If you are unsure how to do this correctly, then read up on it. If you don't have an appropriate caliper (gotta read three decimal places [thousandths of an inch]), then obtain one or pay an engine builder to do it.

SpruceItUp wrote: 04:30 pm Mar 22 2025 Is the left valve the one with or without the idler gear? I have one in good shape that is the one without the idler gear that meshes to it. It ain't perfect but it works. I replaced mine with the BDK steel ones and they work great! And look sweet too (When they're out of the bike). If you need the one you can have it for free, I don't have any need for it.

Edit: I have the other side too, but the top locator pin that goes into the head broke off, though I still have that pin too. It worked as far as I could tell when I took my top end apart, but I replaced it as I wasn't sure how it being broken would affect the valve.