2004 Bombardier Quest/Traxter Series Shop Manual, Page 285Get this manual
Section 05 FUEL SYSTEM Subsection 02 (FUEL CIRCUIT)
Using air pump from engine leak test kit (PN 861 749 100) inject air into fuel tankSee next photo
Pull out fuel gauge no3 from fuel tankAt the same time, remove the fuel gauge gasketV01N0AA
V04F05A
TYPICAL 1Special cap on tank 2Air pump
Pressurize fuel system to 21 kPa (3 PSI)That pressure must not drop during minutesIf pressure drops, locate fuel leak(s) and repair replace leaking component(s)To ease locating leak(s) at fuel tank vent fitting, fuel gauge or fuel cap spray soapy water on components; bubbles will indicate leak location(s)