1987-2009 Yamaha ATV YFM350X Warrior Raptor Service Manual, Page 165Get this manual
CARBURETOR FUEL LEVEL ADJUSTMENT 1Place the machine on level place2Use garage jack under the engine to ensure that the carburetor is positioned vertically3Attach the Fuel level gauge CD to the float chamber nozzleFuel level gauge: PIN YM-01312 4Loosen the drain screw CZ), and warm up the engine for several minutes5Measure: Fuel level Out of specificationAdjustFuel level: 3-4 mm (0.12-0.16 in) below the carburetor body edge6Adjust: eFue level