MY HUSBAND, AN EXPERIENCED RIDER, WAS RIDDING HOME FROM WORK ON OUR 2007 KAWASAKI NINJA EX 250. AS HE STARTED UP OUR DRIVEWAY THE THROTTLE STUCK RESULTING IN HIS CRASHING THE BIKE AND BREAKING HIS ANKLE. THIS FAILURE HAD OCCURRED AT LEAST 2 OTHER TIMES, AT LEAST ONCE DURING THE BREAK IN PERIOD. *TR