Yamaha Outboard Motors Factory Service Manual F6 and F8, Page 258Get this manual
CYLINDER HEAD AND OIL PUMP CHECKING THE SPARK PLUG
Check: Spark plug Refer to "CHECKING THE SPARK PLUGS" on page 3-23Install: Oil pump
INSTALLING THE OIL PUMP
Before installing to the cylinder head, add drop of approx1 cc of Yamaha 4-stroke outboard motor oil from suction port or discharge port b