2011 Arctic Cat 450XC Service Manual, Page 73Get this manual
7Using duct tape or other suitable means, cover the fuel pump openingINSPECTING
BEngage the tabs (C) of the fuel level sensor into the mounting slot (B) and press toward the bottom of the fuel pump to latch in place; then connect the two-wire connector (A)INSTALLING 1Mark the new fuel pump with reference mark in the same location as the removed pump; then place the new gasket on the pump2Remove the material covering the fuel pump opening; then carefully guide the fuel pump into position taking care not to damage the float or float lever
AT THIS POINT
If the pump has failed earlier test and must be replaced, proceed to INSTALLING
1Inspect the fuel screen and blow clean with low pressure compressed air2Move the float lever and check for free movementThe float assembly should return to the lower position without forceIf not, replace the fuel pump assembly3Test the fuel level sensor by connecting multimeter (A) to the fuel level sensor leads (B); then select OHMSThe multimeter should show ohms at full fuel position (C) and 95 ohms at empty fuel position (D)