85 omc sea drive

[Slightly_Twisted]

Ok you motor guys I need some help. So the motor idled ok but rough the frist time I took it out. Decarbed it with seasfoam then broke the carbs down cleaned them with carb cleaner and compressed air. I didn't take the jets out just cleaned them really well. Put new gaskets, needle and seats, adjusted the floot values, then bolted it all back on. Now I can't start the engine unless the spark advance is all the way forward to the stopper and at a higher rpm then a normal idle. it runs normal at the higher rpms, just cant get it to stay running at lower the rpms. As soon as I move the throttle back and the spark advance changes the engine up and quits.

What did I do?!?

I'm no motor person but I have two thoughts something is in/blocking the low speed jets.
Or the timing got all out of sync. (I did remove the spark advance arm to work on the carbs).

You guys got any ideas? I'm I explaining it correctly?

I'll try and take a few pics tomorrow