Tigerdude,

If you are sure the crank/ hub are moving back and forth a bit then the crank isn't siezed in the case. It could be that the piston is frozen in the cylinder or that it is just stuck in the uper "pinch taper" of the bore. I not familiar with that specific engine but it's not uncomon for a new engine to be tight a TDC prior to break in. Two things you can try. One remove the head, then heat the cylinder with a heat gun, the cylinder should expand and the piston will loosen up. Two remove the head and spray some penetrating oil in the bore, let'er soak and and see if you can free it. You can also try both methods soak then heat. Go easy as the last thing you want to do is bend the connecting rod.

Also if it were me before I did any of the above I would remove the carb and be sure there is nothing that fell into the crank opening during MFG (could be a screw jamming it up). Also remove the back plate and be sure there are no foreign objects in the case preventing crank rotation.

Do you have an exploded view that came with the engine, on many engines there is a thrust washer between the drive hub and case.

Darren

PS in reguards to your thread in the other forum, I like the mini Telemaster!