I just got my eXmark Lazer HP with a Kawasaki engine running like it should over the weekend. But now I have a new problem. I had most of my yard cut when my motion control levers stopped working. I was mowing along and they were making the usual sound they make when operated when suddenly they became completely silent (engine was still running fine) and I could not move in any direction. I turned my engine off, looked under the mower and found a broken spring on the ground. How can I go about repairing this?