Hello,<br /><br />I just purchased a Used 1977 Bomber 16' with a 75 Mariner Serial #0B288335 What year is the motor and where can I obtain a repair manual on it? Where do I go to pull the year from the Serial?<br /><br />Thank you. I also have a trim issue, but I need to tinker for a bit before I bother you all.<br /><br />Also call me dumb, I am first real boat. I saw 3 Spark Plugs, so common sence means that it is a 3 Cylinder? 2 Stroke or 4 ?<br /><br />Thank you<br />Brett