2003 Johnson ST 6/8 HP 4 Stroke Outboards Service Manual, PN 5005471, Page 167Get this manual
POWERHEAD ASSEMBLYHP Install the camshaft key with its outer edge parallel to centerline of camshaftInstall camshaft pulley on camInstall screw, with washer, in the end of the camDO NOT torque at this timeInstall belt guide and lock plate
Apply Nut Lock to pulley nut threads and thread onto crankshaft until it contacts lock plateInstall key in crankshaft parallel with taperInstall pulley key in crankshaft parallel with centerlineInstall belt guide and pulleyPress pulley in place using nut and crowfoot wrenchInstall Crankshaft Pulley Nut RemoverInstaller, PIN 342212, on crankshaft taper aligned with keyway and secure in place with flywheel nutUse crowfoot wrench to torque nut to 18 to 20 ftIbs(24 to 26 Nm)