I went to fly my kitfox yesterday and doing my preflight I found that when I moved the throttle the oil injection cable end where it attaches to the oil injector was coiming out of the sleeve and not actuating the arm all the way. I was curios so I moved the throttle back and forth 3 - 4 times and finally the cable popped out of the slot where it attaches to the throttle arm! what keeps the cable in place?