125-200cc Carb Help

I have a 2009 wr125 with a bad needle valve assembly. Tried adjusting float twice and it still leaks out of overflow when not running. I found a site that sells them but they want to know which size, 3.3 or 3.8. Can anyone tell me which one I need? Thanks

Good chance the o-ring on the seat has gotten hard or cracked. Pull the seat out and check the o-ring before you pop for an entire new setup.

Sudco sells carb parts. I bought o-ring and needle valve in the past from them.

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