1987-2003 Yamaha YFZ350 Banshee supplementary service manual, Page 169Get this manual
INSTALLATION 1Install: Carburetor assembly Reverse the removal stepADJUSTMENT NOTE: Before adjusting the fuel level, the float height should be adjusted
1Measure: Fuel level Out of specificationAdjustFuel level measurement and adjustment steps: Plac the machine on level placeAttach the Fuel Level Gauge (J) (YM-01312A) the float chamber nozzleLoosen the drain screw (2) and start the enginePlace tube vertically next the center of the mating line of the mixing body and float chamber coverMeasure the fuel level (a) with gaugeFuel Level (a): 3.0-4.0 mm (0.12-0.16 in) Above the Carburetor Body EdgeIfthe fuel level is incorrect, adjust the fuel level'Remove the carburetorInspect the valve seat and needle valveIf either is worn, replace them bothIf both are fine, adjust the float height by bending the float tang) on the float1 Recheck the fuel level