If I blip the throttle on my F3 the revs return slowly, then dip even further and it sounds like the engine is struggling. Because of this I need to keep my idle up, otherwise it will cause my bike to stall. Performance otherwise is great and I don't really notice it except from when stopping at reds. I plan on stripping and cleaning the carbs so knowing if there's something else I should be looking out for would be great. Thanks!
Video showing this behaviour: