I HAVE A MERC 225 EFI JUST HAD IT FIXED. I HAD PROBLEMS GETTING ON PLANE AND LOADING ON TRAILER BUT ONCE IT GOT ON PLANE IT WOULD TAKE OFF AND GO. MY MECHANIC FOUND A HOLE IN THE PUMP DIAFRAM. . I WOULD REBUILD THAT DIAFRAM PUMP FIRST BEFORE BUYING A COMPUTER. AT LEAST IT WILL BE GOOD MAINTENANCE. I RECOMMEND JUST ADD WATER MARINE ON DIXIE HWY. DAVID 744-4714