Fuel filter is clean , thourght it would be as bike revs fine and isn't noticably down on power in gear = enough fuel available in upper rev range?
Overflow was tape free when installed.

Guys I am thinking now that it is running lean in the low rev / idle circuts when it heats up due to an air leak (hopefully not a crankcase seal) that opens up with heat and leans it out- explains why throttle is slow coming down from rev at idle and why I cna't save it when it starts to die by giving it some revs

Anyhow no more guess work carbs are coming off today and then I'll know for sure?

BTW - never owned a bike before and my engine experience is with v8's so I am on a steeeep learning curve with this bike