I have a 2007 mercury 150 optimax. It only has around 60 hours on it. I bought the boat two years ago with 30 verified hours on it (it is a long story). It had been sitting up for years. owner had it serviced right before i bought it. I may have put 30 more hours on it in the last two years.
My question is....
Does this motor need to be serviced yearly by a certified mercury shop? Boat service centers seem to want me to believe that it should be done regardless. The boat center said that it was suggested that I replace the impeller/water pump every other year even if it was working fine. Are they trying to get some easy business?
Other than draining the lower unit and replacing fluid, what really needs to be done? Unit was running like a top when I put it up in October.
I dont mind a little grease under the nails, but I don't have a chip reader/diagnostic unit. Does this motor really need to be tuned up each spring?