Ski-Doo Ski Doo MX Z 2005 [276/1429] Fuel rail

Ski-Doo Ski Doo MX Z 2005 [276/1429] Fuel rail
Section 06 ENGINE MANAGEMENT (SDI)
Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)
Use a new clamp to secure hose to fuel pump
fitting.
CAUTION: Make sure that hose clamps are
tight to avoid that they turn on their fittings.
Fuel Bleeding Procedure
Manual Start Models
When fuel tank is completely emptied, it may re-
quire up to 25-30 pull on rewind starter to fill the
electric fuel pump reservoir. Filling the fuel tank
will solve this problem. The fuel inside the fuel
tank will flow through the bypass hole of the elec-
tric fuel pump reservoir.
Fuel Pressure Regulator Replacement
Remove fuel pump assembly as explained above.
Remove 2 screws retaining regulator to pump as-
sembly flange.
Replace O-rings with new ones. Install them in
pump assembly flange bore.
CAUTION: Regulator O-rings must be installed
in pump assembly flange bore.
Reverse removal procedure for installation.
Install a new gasket, then reinstall fuel pump as-
sembly as explained above.
FUEL RAIL
Pressure at fuel rail is supplied and controlled by
the fuel pump module. Refer to FUEL PUMP for
pressure test.
Fuel Rail Replacement
Removal
Release the fuel pressure in the system using
B.U.D.S. Look in the Activation tab.
Disconnect fuel hose at the connector.
Wrap a rag around the hose end to prevent rail
draining.
1
A32C9MA
1. Fuel injectors
Disconnect wiring harness from the four fuel in-
jectors.
Cut tie raps and remove the wiring harness from
the fuel rail.
Unscrew rail retaining nuts.
Gently pull rail up by hand, working each side
slightly at a time.
Pull rail out with fuel injectors.
If necessary remove fuel injectors as described
below.
Installation
For installation, reverse the removal process but
pay attention to the following.
Replace O-rings with new ones.
A thin film of injection oil should be applied to
O-rings of fuel injectors to ease installation in cylin-
der.
Torque rail retaining nuts to 10 Nm(89lbfin).
Make sure that injector clips are well in place.
Add dielectric grease (P/N 293 550 004) to injector
electrical connector.
When installing fuel line connector to the fuel rail,
put some oil on the O-ring to ease installation.
WARNING
Perform a fuel pressure test and ensure that
thereisnoleak. RefertoFUELPUMPabove.
Run engine and check for leaks.
mmr2005-081 261

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