Brunswick Community

Can someone please tell me the function of these holes?After flushing the motor, I noticed a grayish oily substance.I was idling in the bayou waiting to trailer and Rosie is a 2 stroke that like to go fast.Is this oil that didn't burn up or sign of a...

I am so happy to have my new 1988 Sea Ray Seville with 135 Mercury!!! Now, where do I buy new spark plugs and are they a common item or should I take an old one with me? I am new to all of this and very grateful to have "Rosie" in my life! Any words ...