Harley 30-degree v2 engine. To get it to tern gently push on the bottom of the pistons until you hear a click. After doing this to all pistons and valves gently rotate the crank shaft back and forth but not enough to break it. what you are able to rotate all the way around several times you can do one of two things 1. you can spin it by hand LOTS. this is time consuming but works or 2. you can bl

ow compress air sideways on the propeller to make the engine tern wonderful in just a cupel of seconds.