Mercury 25 EFI Service Manual page 207

3. Remove the VST drain hose.
e
d
c
b
a
4. Remove the two screws securing the fuel pressure regulator to the VST cover. Remove the fuel pressure regulator from
the VST cover.
5. Remove the five screws securing the VST cover to the VST tank.
6. Separate the cover from the tank.
7. Push the fuel pressure regulator return tube assembly out of the VST cover.
8. Loosen the float pin screw. Remove the float and fuel inlet needle.
a
9. Pull the high pressure fuel pump from the VST cover.
10. Remove the insulator cover protecting the wires on the high pressure fuel pump.
11. Remove the wires on the high pressure fuel pump.
90-8M0105568 eng MARCH 2016
f
g
16735
a
b
a - Fuel pressure regulator return tube
b - Float pin screw
b
10255
a - Spacer (2)
b - Grommet (2)
c - Grommet (2)
d - Washer (2)
e - VST vent hose
f - Assembled grommet
g - VST drain hose
a - Screws securing fuel pressure regulator (2)
b - Screws securing VST cover (5)
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© 2016 Mercury Marine
Service Procedures
Page 3C-23