Inspection
1. Clean all carburetor components in suitable solvent and dry with compressed air. Be sure to blow out all carburetor passages completely.
2. Inspect air horn, main body and throttle body for cracks or other damage.
3. Inspect choke shaft and throttle shaft for wear.
4. Inspect linkage and connecting rod for deformation.
5. Inspect return springs for damage.
6. Inspect air bleeds and jets for restrictions. If any restrictions are evident, clean in solvent and dry with compressed air. Air bleeds and jets must never be cleaned using wire. A wire may enlarge the hole of passage, adversely affecting carburetor performance.
7. Inspect diaphragms and float for damage.
8. Inspect needle valve and seat for wear or rust.
9. Inspect strainer for rust or other restrictions.
10. Check operation of air vent solenoid valve and richer solenoid valve, as equipped. When battery voltage is applied to valve, valve stem should be pulled into body.
11. Check operation of power valve solenoid, if equipped. When battery voltage is applied to valve, valve stem should come out from body.
12. Replace any components found to be worn, damaged or not properly operating.