Please Help - Just rebuilt carb - Engines Lags. JETS? FLOAT?

[kvonatzigen]

Ok, so I just finished cleaning/rebuilding the carb on my 07GS500f. It was left out in the weather and built up some nasty stuff. Anyway, everything is put back together and seems to be running fine. One problem...when I've been test riding it never goes above about 6,000 RPM. It seems to lag out and only wants to go about 50-55 mph. Is this due to the jets being too lean? I just want to make sure before I dig back in tonight.

Thanks,

[kvonatzigen]

Or could it be float height?