Alright, here is the deal. I have a Hammer Head 80t. And the clutch is all messed up. It is constantly engaged, even when the go kart is off. When I go to pull the chord to start it, it wants to take off. To start it I have to push it to jump it. We tried cleaning it, the spring, sanded it. lubed it, but it is still locked in the engaged position. Any clue on how to fix it. We got it from our neighbor, we don't know if he messed it up or what.