KX Guru Racing

I was told that Yamaha didn't make reed valves for these models anymore and that the carb manifold has been out of production for a while. My engine didn't come with a reed valve assembly. Moto Tassinari don't make anything for these models. So i'm trying to find something aftermarket and new or ...

Thanks for the pics, I appreciate your efforts.
I have a WR500 and I am trying to find an aftermarket reed assembly for the intake. Moto Tassinari don't make anything for this model so I was looking at maybe trying to modify a KX 500 Reed to suit, unless you know of an aftermarket assembly that ...