M_Boats: 4-Stroke Outboard, Break-In, Vibration

Hmmm..you could run the motor in a water barrel for a few hours before installing on your boat. I run my Seagulls that way every spring tuneup. After 3-4 hours of barrel running time, put it on your transom and motor around at varying speeds for a few more hours, and you should be OK. Harvey/ Ga M-17 Stargazer #294