Ski-Doo 2005 MACH Z, Shop Manual, Page: 124 / 343

Section 03 FUEL SYSTEM
Subsection 01 (FUEL TANK AND FUEL PUMPS)
For reinstallation, proceed as follows:
– Install grommet halfway on gauge.
– Insert grommet in fuel tank until it bottoms.
– Firmly push gauge in grommet until it bottoms
and so that its red line aligns with the line on
the fuel tank.
1
A33C2XA
1. Align red line with line on tank
ELECTRIC FUEL LEVEL SENSOR
INSPECTION
Mach Z
Fuel level sensor is integrated to the fuel pump.
Refer to COMPONENT INSPECTION, REPLACE-
MENT AND ADJUSTMENT.
A 0.5 amp. fuse protects fuel level sensor circuity
in fuse box.
FUEL SYSTEM PRESSURIZATION
Fill up fuel tank.
Install on fuel tank, the special cap of leak tester
kit (P/N 529 033 100).
Using vacuum/pressure pump kit (P/N 529 021
800), inject air into fuel tank. See next photo.
A32CBJA
1 2
TYPICAL
1. Special cap on tank
2. Air pump
Pressurize fuel system to 21 kPa (3 PSI). The pres-
sure must not drop during 3 minutes.
If pressure drops, locate fuel leak(s) and repair/
replace leaking component(s).
To ease locating leak(s) at fuel tank vent fitting, fu-
el gauge or fuel cap, spray soapy water on com-
ponents; bubbles will indicate leak location(s).
High Pressure Test
(Electric Fuel Pump Circuit)
Install tether cord on DESS post. Push the emer-
gency switch to OFF position. Push on start but-
ton to activate fuel pump.
Check for any leakage at fuel rail, injectors, in-line
fuel filter and fuel hose.
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