I just traded in my old engine for a new engine. I installed the engine. Put the hex nut and the flywheel on along with the clutch and housing. Now, I go to start the jato and it does nothing. Flywheel won't spin. My battery for the ez start is fully charged and when I take off the clutch, I am able to use a socket to spin the piston up and down (goes kind of hard cuz its new) but as soon as I go back to trying the ez start, it freezes up. What can I do to resolve this issue?