GZ250 idle speed advice

[Kalel]

Hello guys. I finally got the vacuum hose connected and now the bike runs nice. Shifting is smoother. This is my question: started the bike, was warm, then I rode for about 50 minutes and then I started noticing the idle speed increaing when stoping at lights, or stoping in general, So i stopped, put the bike in neutral, and recorded this video so that you guys can tell me if this sound is the sound of the bike or if something has to be adjusted... Yeap, nice bike right? :-) Thanks water warrior, and thanks johnatan, blaine, mole and 5th bike for your support.