KDXRIDER.NET

Or should I buy one from eBay and swap...

If its flowing in reserve, but not in on, then there is likely some blockage inside, or the ON portion of the petcock screen is clogged but the RESERVE portion is not. I would drain the tank and remove it, you may be able to blow out the debris after removing the screen, but be gentle it is plastic and fragile when old. I don't know anyone that has used an ebay petcock, but its a simple valve so likely it would work fine. The OEM ones are pricey.

First I would drain the tank, then on the front of the petcock there is a metal plate over the lever that is held on with 2 screws. Take those out and you can disassemble the valve portion, removing the lever, an o-ring and a packing, and check for blockage. If not there then I would remove the petcock.

Yes indeed. I second everything he just said.

I put an ebay petcock on the CRF230 4 years ago and have not had a problem. I forgot which hut it came from but they are pretty good at returning your money if not happy.

Thanks for the advice, details and suggestion! I think I’ll do both.. fix the one I have, and order the...9.00 replacement in case I screw up. (Depending on what they want for shipping cost)

First question asked, got a great answer! That’s pretty cool.

I have an old one that works from my 95, if you want it.
It’s not pristine.
I mis diagnosed a leak on my bike when I first bought it. and put in new petcock. Shockingly it didn’t fix my CS seal.
But new one was already in the bike. So now old one is in the leftovers box.
I see you went to walker, so we may not be too far apart.