Rich Fazer?

[Fazer Jake]

My fazer 03 600s currently running a racing exhaust and a K&N smells like its running a little rich? Is this a bad thing? Checked plugs and they seem to be the normal colour.

Do i need to get a dyno? ocassionally see smoke at high rpm

[Gnasher]

They run rich thats why you can fit a race can and K&N without any jetting.  Make sure the pilots screws are set correctly most aren't readjust then ride and enjoy.