2004 SR Johnson 2-stroke 40, 50HP Service Manual, Page 204Get this manual
POWERHEAD INSTALLATION Install the exhaust housing to powerhead nutTighten the nut to 18 to 20 ftIbs(25 to 27 Nm)Perform the following procedures before returning the outboard to service
40150 PL MODELS
Prime oiling system Refer to Oiling System Priming on p52
ALL MODELS
Follow Break-In (10 Hours) on p53 RUN outboard on additional oil for 10 hours of operation Confirm all linkage adjustments and set low and high speed timingFor adjustments, refer to SYNCHRONIZATION AND LINKAGE on p69 and NEUTRAL DETENT ADJUSTMENT on p.241