HAS ANYONE HAD ANY EXPERIENCE GOOD OR BAD IN REBUILDING THESE MOTORS ? THIS ONE WAS A PROBLEM CHILD SINCE DAY ONE. THE PREVIOUS OWNER HAD THE CHANGE OVER KIT INSTALLED UNDER WARRANTY ONE MONTH BEFORE THE WARRANTY EXPIRED. THE MOTOR SOON AFTER HAD TWO CYLINDERS GO DOWN. THE MOTOR WAS YANKED AND HAS BEEN LAYING ON A PALLET EVER SINCE.IS THIS MOTOR WORTH THE HEADACHE TO REBUILD OR SHOULD I FIND A MORE SUITABLE CANIDATE.