serious overheating problem with KR on bike carbs...

Hi all need some help,
My 16v runs stupidly hot and always overheats when i go for a drive….
Its running a top fill rad, no thermostat and a huge passat air con fan for cooling but still runs soooo hot!
The cars running very lumpy at the mo and has a miss fire that i just cant get rid of (could this make it run hot?)
Any ideas would be awesome as its really pi***ng me off as i cant enjoy it
Cheers

Is it running really lean on the bike carbs?  Timing advanced too far?

is the coolant circulating properly

it could be running lean, its going in for a tune up tomorrow so should hopefully find out soon enuf!

Yeah seems to be circulating fine…?