Take the spark plug out and use a cordless drill and spin it over[slow] and see what happens and also listen for any noises.If your using a single bolt tighten it down or a shorter one and turn it cw if ya have to.Use a socket and short extension.1/4 inch should work.It wont matter wich way it turns just to find out this info.Do not use an electric starter or a 110 volt drill,they will spin it to fast.A 110 volt drill will work as long as its variable speed.