Originally Posted by rbbaker
I have a Merc 9.9 on a Catalina 250. It has been perfect. Almost can't hear it run - not one problem with it for 4 years. The Mercury and Nissan are not the same quality - the Mercury is the high end outboard. lot fewer plastic parts. I have several buddies with the Nissan which cost less to buy new - they have all had some issues.
Do you know that the Merc and Nissan are rebaged Tohatsu. I believe the one difference in the Merc and Tohatsu is max RPM (9.9 vs 9.8 respectively) and the Merc has the shifter in the tiller, built into the throttle, which in my opinion is not an option I would want, because you cant rev the engine without the gear being engaged.