Im flumoxed

[darrsi]

[quote author=Shappaeye link=topic=20224.msg233193#msg233193 date=1464638314]
Checked the air filter? Sucking too much air perhaps?

Sorry but how the foc would u check the airflow through a filter and if by chance it was flowing more air than usual, would it cause the above symptom.
Check the other two.
[/quote]

As long as it's not a leak it would probably appreciate the air at higher speeds, bit like if you added a K&N filter.
If it was an air leak, like at the carb rubbers for instance, the bike would just bog down every time you try and overtake or give it a bit of welly.