Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 211Get this manual
MANUAL TILT
Reservoir and Feed Oil
Return Oil
aElectric MotorTrim RamImpact Relief ValveShock PistonMemory PistonManifoldSuction SealDown Pressure Operated Valve i-lilt Relief ActuatorManual Release ValveTilt Relief ValveUp Pressure Operated ValveDown Circuit Feed Valve