No crank

You can just short out the terminals with a screw driver to see if it crank the engine over. The big thick post is always hot, use that post to get juice to the small post. Just wedge a screwdriver between the posts and it should crank. If so, then just turn the ignition key to on, and crank the engine over with the screwdriver. When it cranks over, goose the throttle by hand and engine should start up.

If you hear a thump thump from the starter, try turning the crank by the balancer in front with a large beaker bar to see if the engine is frozen. If the crank turns, then it might well be a bad starter motor.