idle problem

hi guys long time no type my bike idles
lovely with choke half on take choke off sounds
camyare my carbs out of balance.
my bike is a kz750e pod filters new jets on
she sounds and runs lovely when you open the throttle
any ideas cheers dave

Could be a vacuum leak? Maybe they need the throttle plates synchronized (balanced).

I'd guess the same... air leak, or bad carb sync.

Valve lash is deffinately a necessary check.

Compression could be down...

Good luck.