Help!

[hobsiscool]

I'm trying to find TDC on my inline 250 so that I can adjust the valves, but a) i've never done it, and b) there doesn't appear to be a bolt to put a wrench on in order for me to turn it...there's just the harmonic balancer w/ the three holes and then the hole in the middle, but nothing attached to it...I've ready you can tap the ignition and get the rotor pointing the right way, but if they dizzy isn't put in that way then it wouldn't be correct...Please help me out...how can I turn this thing by hand?

If this is a rookie question, I'm sorry, but I've searched and read and tried and can't get it done...do I need to take off the belts or anything? I also read that you can put some penetrating oil into the spark plug holes to loosen it up a bit...maybe give this a shot?

Thanks in advance! I need the help!

Lance