Mercury 200 OptiMax Jet Drive Service Manual page 202

2. Install the fuel/air pressure gauge kit to the fuel pressure test valve and release the fuel pressure into an appropriate container.
Fuel Pressure Gauge Kit
3. Disconnect the high‑pressure fuel pump from the engine harness.
4. Remove the metal hose clamps securing the high‑pressure fuel outlet hose and the low‑pressure fuel return hose. Remove
the fuel hoses from the fittings.
5. Remove the air vent hose and lift pump fuel inlet hose.
6. Remove the cable tie securing the hoses.
a
b
c
7. Disconnect the engine harness water sensor connector from the water separator fuel filter.
8. Disconnect the low‑pressure fuel pump connector from the engine harness connector.
90-8M0050731 MAY 2011
a
b
c
a
d
f
e
g
Direct Fuel Injection
a - Port fuel rail
b - Fuel pressure test valve
c - Air pressure test valve
47713
91‑881833A03
a - High‑pressure fuel outlet
hose
b - Fuel return hose (from fuel
regulator)
c - Drain plug
d - Air vent hose (to fuel tank)
e - Lift pump fuel inlet
f - High‑pressure fuel pump
electrical connector
g - Cable tie
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