KTM LC4 620 fuel problem

I have a 1995 KTM 620 RXC/LC4 that isn't getting fuel in the cylinder. I just did a valve lash adjustment, cleaned the carb, and has good spark and compression. It spits back fuel into the intake. I'm kind of scratching my head on this one. It didn't run when I got it so it's a bit of a project. Is there a vacuum line or something I'm forgetting here?! Thanks

Hi mate just trawling through the 620 threads as I have one myself. Did you sort this out?

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