1985 OMC 65, 100 and 155 HP Models Commercial Service Manual, PN 507450-D, Page 108Get this manual
6Point end of fuel hose into container below top of tank Depress the ball in the fuel connector until any remaining fuel is expelled 7Add airto bring pressure back to 69 kPa (10 psi) 8Close air release valve on adapter and remove Stevens
Pressure Tester
9Submerge fuel tank in water, one portion at time, in the same manner you would check tire for air leaksAny air bubbles indicate leak point which must be repaired or replaced 10Disconnect hose from tankWith fuel connector housing submerged, check for leakage from fuel nipple and fuel valve pin Depress vent valve pin to check air vent disc valve for leakage11After testing, open release valve on adapter to release tank pressure before removing capHose and Primer Bulb Assembly Clamps To disassemble hose clamps grip clamp with pliersBend overlapping hook backward (in direction of arrow) to release clampTo assemble hose clamps, grip clamp firmly with pliersApply slight pressure to hook on topside with screwdriverSqueeze clamp with pliers until hooks interlockCheck for leaks by connecting fuel tank line to motor and squeezing primer bulb until definite pressure is felt in the bulb