im trying to get the head and cylinder off.. this is my first time doing it.. ive got the tensioner out and now i need to get the gear off so i can remove the chain.. how do i keep the cam gear from turning when trying to losen the bolt on it ? ive never done this before.. im sure its a probably a stupid question.. but i cant figure out a way to do it . with out a piston stop and i dont have one of those.. nor do i have an impact Thanks for any help

 

never mind we figured it out..