When breaking in a Mercury 4 stroke the manual says to vary rpms and stay under 4500 rpm for 2 hours, except running WOT for 1 minute out of every 10 minutes. It doesn’t specify if this has to be done all at once or if it is cumulative over 2 or 3 trips to the lake. What do you all think?
Does the 2 hr initial breakin have to be in one trip to the lake, or cumulative till you hit the 2 hour mark?
11 replies
Important Information
We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.