"Greg" wrote in message
...
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?

That sounds about right. But if you are in doubt, call the Merc service
center in your area and they should confirm that this is acceptable for an
EFI 4-stroke.

If this were a 60 HP 2-stroke, and you were to run it at that RPM or lower
for a long period each time you went out, you could have problems. I pulled
apart an older 60 HP Merc 2-stroke about 2 years ago and the exhaust tube
was plugged almost completely, because the old fella used it for trolling
and never went close to WOT for more than 5 minutes each trip. The exhaust
chamber looked like it had been used on the top of a wood stove. I spent an
hour "mining" the carbon out of it.