[Badboyz]

My '09 Jack runs great up to about 2500 rpms, then it starts to vibrate quite a bit as the rpms increase. Has S&S cleaner and Freedom downsweeps, otherwise stock. Put a tuner on it, but it had no effect. Something not quite right. hint: I have 3 Vics. The other two are smooth at higher rpms.

Replaced fuel lines, iac, Compensator? counterbalancer?

 

[Known1]

Are your tires in balance?

 

[Badboyz]

I think so, but it does it at al rpms/speeds.