
Originally Posted by
PaulsCycleShop
Sounds to me like the AICV is not operating/set properly, you can adjust how reactive it is in the tune file, if you have the hardware/software for your bike.
It could also be several other things mechanical, like an air intake issue or leak. Head gasket leak,,,ect.....
No engine will stay right on the idle point at all times, but if it is fluctuating more then what would be normal, then I would make sure there are no mechanical issues then start looking at electrical then the tune files.