2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 53Get this manual
INSTALLATION AND PREDELIVERY INITIAL RUNNING CHECKS
Break-In (10 Hours)
IMPORTANT: Follow this procedure to protect the outboard during its initial hours of operationCareful break-in allows internal engine components to seat properly, resulting in maximum engine life and performanceFailure to carefully follow the break-in procedures can result in outboard damageRun the outboard on 25:1 fueloil ratio during break-inPerform the 10-hour break-in procedure with the boat and outboard in the water, using an appropriate propeller
First 10 minutes of operation outboard in gear at fast idle ONLYNext 50 minutes below 3500 RPM
Operate the
Operate outboard in gear