2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 244Get this manual
MIDSECTION EXHAUST HOUSING Position new idle relief muffler gasketInstall the muffler to the exhaust housingApply Nut Lock to the muffler's retaining screw threadsTighten the screws to torque of 48 to 60 inIbs(5 to Nm)Lubricate the upper shift rod with Triple-Guard greaseInstall the shift rod into the shift arm with pin and new cotter pin