Missing at high revs

[Deleted]

Ive just put a new K&N AIR FILTER in. The bike as Akropovic exhausts. I didn't replace the plugs but copper greased the threads.
The bike now is missing at high revs, any ideas on what I've disturbed.

[maxz1000]

Hi Mark,
What year is your bike? Just wondered if changing the filter and exhaust has messed up the bikes fueling and you now need a power commander to correct it!?

As you have removed and refitted the spark plugs, might be worth checking the plugs again and the HT caps are tight.