wrote in message
...
So,I repowered this past summer(05),with a pair of e-tec 250's(On a 2950
Proline)......I have about 100 hrs on them,in all types of different
running (trolling,cruising etc.)I love these engines....they are
smooth,and extremely quiet.....the only problem,was the plugs fouled when
it got cold(NE region,fall fishing


It sounds like the thermostats are fouled or "out of spec" by not allowing
the motor to warm up to its designed operating temperature. There is also a
pressure relief valve that could be leaking or bypassing water internally
that will also give the same symptoms. See your authorized dealer, there is
a service bulletin that describes how to check the cooling system to make
sure the motor is operating correctly.

Bill Grannis
service manager