1986-1991 Kawasaki 650 X-2 Service Manual, Page 32Get this manual
214 FUEL SYSTEM -Immerse allthe metal parts in carburetor cleaning solution-Rinse the parts in water-When the parts are clean, dry them with compressed air-Blowout the air and fuel passages with compressed air-Inspect the check valve for damage or deterioration, and replace it if necessaryIf the gasket under the check valve appears damaged, it may leak and must be replacedDiaphragm NeecUe Wear
1Diaphragm Needle
2Diaphragm Needle Wear
If the plastic tip is damaged, replace the needle
Float Arm Levelnspection and Adjustment
-Check the float arm leveloMeasure from the plastic tip on the fl.oat arm to the case, as shownFloat Arm Level Measurement
AGasket BCheck Valve