You should never try to turn the motor over by hand especially when cold
if for some reason you want to check pinch before fully broken in find bottom dead center and turn flywheel slow when u meet resistance STOP!!! That’s how u can track the motors full break'n progress after initial break in ...every 5 tanks or so u should be able to turn fly wheel a LITTLE bit more each time u check.....
never never never ever force a cold motor over or even a warm one...just my opinion...im no guru