I just picked up an evenrude lark 25532-03146. From what I can tell of other posts on this site the first number is the model and second number is the S/N. that being said, it seems that the first two numbers of the model number are the hp, 25, and the next number has to do with the year, 55??,65?? and from there I have no idea what the other numbers mean. It would be great if someone can help me identify my motor, but even better if someone posted the "secret code" to decifer the numbers since it seem a lot of people have this same question.<br /><br />thatnks in advance for the help!<br />kjk