Briggs & Stratton VANGUARD 810 EFI Repair Manual page 109

Section 5: Removal/Installation
Proceed as follows:
NOTE: Perform all steps if checking fuel sys-
tem pressure. If only relieving fuel system
pressure, perform steps 1-7.
1. Turn Ignition OFF.
2. Loosen fuel fi ller cap to relieve fuel tank
pressure. Tighten fi ller cap after loosening.
3. Remove access cover. See Access Cover/
Blower Housing, Removal, steps 1-3, page
119.
4. Remove air cleaner assembly. See Air
Cleaner Assembly, Removal, page 123.
5. Pull out grey secondary lock and press to
disconnect fuel pump module connector.
6. Turn Ignition ON, Engine ON.
7. Start and run engine until it stalls. If it does
not start, crank engine a few times to re-
lieve fuel system pressure.
8. Obtain the following tools:
• Briggs & Stratton Fuel Pressure Gauge
(Part No. 19627).
• Briggs & Stratton BIG BLOCK Fuel Pres-
sure Test Adapter (Part No. 19624).
9. Squeeze two tabs on quick disconnect fi t-
ting to release fuel rail from fuel outlet port
of fuel pump module.
NOTE: Wrap shop towel around fi tting to catch
any fuel leakage.
10. Install fuel pressure test adapter between
fuel rail and fuel pump module.
11. Remove protective cap from Schrader
valve on fuel pressure test adapter and
install fuel pressure gauge.
12. Connect fuel pump module connector.
Push in grey secondary lock to secure.
13. Turn Ignition ON to pressurize fuel system.
14. Note the reading of the fuel pressure
gauge. Fuel pressure should remain steady
at 38-43 psi (262-296 kPa).
15. Turn Ignition OFF.
16. Position the clear bleed tube in an ap-
proved container and press the pressure
relief button on the gauge assembly to
relieve fuel system pressure. Fully depress
and hold the pressure relief button until
pointer on the dial face is resting on the
stop pin.
17. Remove fuel pressure gauge from Schrad-
er valve on fuel pressure test adapter.
NOTE: A small amount of gasoline may drain
from the Schrader valve when the gauge is
removed. Wrap a shop towel around the valve
fi tting to catch any fuel leakage.
18. Install protective cap on Schrader valve.
19. Remove fuel pressure test adapter be-
tween fuel rail and fuel pump module.
20. Firmly push quick disconnect fi tting on fuel
rail onto fuel outlet port of fuel pump mod-
ule. Gently tug on fi tting to verify that it is
properly seated and secure.
21. Turn ignition switch ON for two seconds,
and then OFF for 10 seconds. Turn the
ignition switch back to ON and check for
fuel leaks.
22. Install air cleaner assembly. See Air Clean-
er Assembly, Installation, page 124.
23. Install access cover. See Access Cover/
Blower Housing, Installation, steps 7-10,
page 119.
105