Sea-doo GTX Limited iS 255 2009, Shop Manual

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Section 04 FUEL SYSTEM
Subsection 03 (FUEL TANK AND FUEL PUMP)
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TEST SETUP
Slowly apply pressurized air close to the pressure
specification.
NOTICE
Do not exceed the specification
when pressurizing the fuel tank.
Bring the test pressure to the specification by
manually pumping the vacuum/pressure pump.
FUEL TANK LEAK TEST
PRESSURE
TIME WITHOUT PRESSURE
DROP
21 kPa (3 PSI) 10 minutes
If the pressure drops, locate fuel leak(s), repair/re-
place leaking component(s) and carry out a new
fuel system leak check to validate repair and en-
sure there are no other leaks.
NOTE: Possible leak areas: Inlet valve, fuel tank,
fuel tank neck, fuel tank cap, fuel pump gasket,
vent hoses, connections and valves, filler hose
and connections, fuel hose and connections, fuel
rail and injector(s).
To locate a leak, check for a fuel smell or leaking
fuel.
If a fuel smell is detected but a leak is not visible,
spray a soapy water solution on components to
ease locating the leak(s); bubbles will indicate leak
location(s).
NOTE: If pressure does not stand and no leak has
been found, it is likely a leaking fuel injector. Refer
to
ELECTRONIC FUEL INJECTION .
NOTICE
When the fuel system leak test is
complete, thoroughly rinse all components
of the soapy water solution with clear water.
A soapy water residue may cause premature
deterioration and must be rinsed away.
WARNING
If a leak is found, do not start the engine.
Wipe off any fuel that leaked and ventilate
the hull thoroughly to remove any accu-
mulated fuel vapors. Do not use electric
powered tools on watercraft unless system
has passed the leak test.
Open fuel tank cap to release pressure in fuel
tank.
Check Valve and Pressure Relief Valve
Test
Pressure Relief Valve Function Test
Valve is checked when performing the FUEL
TANK LEAK TEST .
WARNING
If pressure relief valve is stuck, the pressure
in fuel system will build up and it may cause
fuel leakage in engine compartment.
When replacing valve, always reinstall it with the
arrow pointing as shown.
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Reinstall valve in its grommet.
Inlet Check Valve Test
Disconnect vent hose from fuel pump.
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1. Disconnect here
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