2006 SD Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 172Get this manual
POWERHEAD COOLING SYSTEM
Cooling System Diagram
CYLINDER HEAD
THERMOSTAT When OPEN
(J) PILOT WATER HOLE
CYLINDER
Air vent hole
WATER DRAIN HOSE
IN OIL PAN
WATER PASSAGE
f.fr WATER PASSAGE