It may be a few drops setting on the trailer at the ramp, but once you run it a lot more comes out. Sounds like you may have overfilled it and caused a seal to fail.
After changing lower unit oil, I always bleed any pressure or overfill off by running it and getting the oil warm, put it back on the trailer and then crack the bleed screw. This is especially important on Mercury torquemaster and sportmaster lower units.
Edited by Gamblinman (11/05/16 04:11 AM)