Here's a quick way of checking it:
Leaving the ten. mounted in the head, remove the center big bolt (slowly).
There is a spring right behind the bolt, so make sure to catch it as you remove the bolt.
Remove the spring. Take a small center punch that will fit in side the bolt hole (center punch should have a flat piont on it). The center punch should touch the end of the pluger in the ten. Take a small hammer and tap on the end of the punch. If the pluger is frozen this should knock it loose and tighten the chain.
Replace the spring and bolt and start the bike and check for noise.
Mind over Matter:
If you don't mind, then it don't matter!
Def. of a man:
We spend 9 months trying to get out and the rest of our lifes trying to get back in!\