Z550 -82 bogs out on lite rpms.

Hi everybody!
Just bought me self an z550.
A fun bike but there seems to be a problem.

When I hit the throttle full standing still i bogs out, but if i rews it slow to 2500-3000rpm and above it runs really fine. The problem dissapear if i pulls the choke.
I’m going to go through the carbs and the intake system but i wanted to hunt some tips and advice before!
The bike is stock

I apolegize får my english, i’m a jolly swede!

Thanks and best regards
Nilsson

Welcome Heres some reading for you . www.kzrider.com/forum/8-about-the-site/600635-signature#702657

Im sure Lou will be along soon with more info .

Wow thats awesome! Thank you very much, that could help a lot!

//Nilsson