hey bud, take the pv window off, there is a cylinder in there. it turns, and has a cut out in it for the exhaust.
you should be able to move it when you stick your fingers in the hole, unless you got some fat sausage fingers.
if you see the screw and the arm for the pv its in there, just like prego. lol  it could be froze tho, or stuck.
depends on what oil was used and if bike had any pm work. they do get gummed up sometimes.