Hey guys, out of boredom and just curiosity I decided to rebuild my engine. Everything has been going smoothly but I got stuck with removing the fly wheel. What I think I need to do is stick a screw driver in that little hole and then use a wrench to turn the nut off but when I try it's really hard and I'm afraid I might break something. If any of you all know how to get that thing off please let me know. Any other tips about putting the thing back together and such would be greatly appreciated. Thank you.