Plenty of juice. All connections clean and tight. In neutral. Relay clicks and so does the starter. It will not crank. I have had this happen a few times but after a while of trying it would spin. Has the starter just failed? I can only think of one more thing to check- hydrolocked with gas from my freshly cleaned carb leaking somehow. I will pull the plugs to see if it will spin without them. If I get a facefull of gasoline, I know what's wrong.