2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 155Get this manual
CARBURETORSPORTSMAN 500 Fuel Level Test
A fuel level test can be performed on some models if the drain hose fitting is accessibleBe sure to reattach the bowl drain hose after performing the testA fuel level test allows you to observe the height of the fuel in the float bowl without removing the carburetorThe fuel level can be observed with the engine either running or shut off, however, engine must run briefly to allow fuel level to stabilize1Attach clear line to drain fittingBe sure line fits tightly on fittingPosition hose along side of carburetor as shown1.5 mm .060 inBowl Mating Surface