Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 297Get this manual
POWEATAIM
Shock Function
Up 1625 psi (30-60 hpj 2800 psi (75-125 hpj minimum
Reservoir il Return il Oi Under Pressure
Impact Relief Pressure #22 680-1110 psi (30-60 hpj 1220-1420 psi (75-125 hp