no, you will see it on the head button. Thats usually where they get stuck. You may not have any. Hows the compression? I run 1-.010 and 1-.020 for shims. A go engine broken in properly should still be fairly hard to turn over by hand even after 2 gallons with the fly wheel on. So this should give you some indecation of how much use it has.
also send me an email address so I can send the blow up parts list.