Suzuki 2003-2007 DF60 DF70 Outboard Motors Service Manual, Page 260Get this manual
LOWER UNIT
Do not exceed pressure of 110 kPa (1.1 kgcm2, 15.6 psi) or damage to oil seals will result4Once stabilized, the pressure should remain steady for at least minIf the pressure does not fall, sealing performance is correct