2006 Johnson SD 30 HP 4 Stroke Outboards Service Manual, PN 5006592, Page 40Get this manual
INSTALLATION AND PREDELIVERY OUTBOARD RIGGING IMPORTANT: Use marine sealant rated for above or below waterline useRTV silicone is not approved for below waterline usePolyurethane sealants are not easily removed and may damage outboard or boat mounting surfaces when removedApply marine sealer (rated for above and below waterline use) under hex heads of bolts, on the mounting plates, and to the bolt shanksTighten bolts to 14.5 ftIbs(20 Nm) OUTBOARD RIGGING&WARNING
To prevent accidental starting of engine, confirm the battery cables are disconnected at battery and spark plug leads are disconnected from spark plugs