View Full Version : Monitoring engine hours
04-14-2005, 12:51 PM
I've got a 2003 225 hp Mercury 4 stroke (black yamaha with a mercury sticker). is there a way to check the motor for how many hours are on it?
Yes there is a memory chip in the motor that contains data like total hrs, highest rpm's,highest operating temp, etc, your merc dealer can read the chip.
04-15-2005, 08:23 AM
thanks for the reply, rj. i figured as much
04-15-2005, 07:03 PM
Actually they can only read the hours if the dealer has the new cds software. There isn't a port to connect the old ddt. Basically now trouble shooting the 225 four stroke consist of hooking up a light to the test port and counting the flashes. If your local merc dealer doesn't have CDS call a yamaha dealer.