SteveB wrote:

My Serial Number is OC 186507. According to the chart at:
http://www.maxrules.com/Merc_model_files/40-50.html
O = Oil injection
C = Counter Rotation

Your serial number is OC186507 (no space). The OC is part of the serial
number, not an indicator of the option/model type.

What does the counter rotation mean?

The prop spins the other way so when you have two outboards mounted,
each prop cancels the other's steering torque. You do not have counter
rotation.


--
Regards,
Dave Brown
Brown's Marina Ltd
http://brownsmarina.com/