Greg wrote:

Am I hurting my 60 EFI merc 4s by running at 1200-1500 RPM? I know that is
tough on a 2s. (fouled plugs, shaky lubrication etc)
I have about 35psi oil pressure, water running at the stat temp, 6-8 PSI water
pressure, computer seems to be metering gas OK and the battery is charging.
What else should I be worried about?


I have the same engine and do a lot of trolling at low RPM's- no
problems. I've heard talk about the motor "making oil" from condensation
under these conditions, but I haven't seen a problem.