were you present when the timing was done? if so its not hard to do. just point the cam gear so that the up is pointing up and line up the two lines on the gear with the top of the head. then put a long extention down the #1 cylinder and turn the crank until it ggoes all the way up to top dead center. then put your belt on. just turn the motor over by hand to make sure that nothing hits internally. then fire it up