Broken rod?

[demarcor]

So... If you take the spark plug out on an old kf82, can you see the top of the piston? If that is what I am seeing, when I manually turn the drive clutch, the piston does not move. I am thinking broken rod... i can only turn the motor over about half way by hand, then it is too difficult to move. the s/g wont turn it over at all. This motor has been apart before, but I forgot if the piston lines up with the spark plug hole or if it is off to the side. Just want to know what I am seeing...