2004 SR Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 112Get this manual
POWERHEAD CYLINDER HEADNALVECAMSHAFT Remove: Rocker arm shaft CD Washer (2) Wave washer Rocker arms (Qty4) Spring
NOTE: Install mm bolt into the lower end of the rocker arm shaft and pull out the shaft Reassemble each rocker arm to the original position
Remove: Camshaft
Remove: Valve cotter CD (Qty8) Valve spring retainer (2) (Qty4) Valve spring (Qty4) Intake valve (Qty2) Exhaust valve (Qty2) Valve stem seal (Qty4) Valve spring seat (J) (Qty4) Valve lifter Attachment Tweezers