The Float Valve Set is one of many critical wear items in the carburettor. Renewing this along with the other jets, including main jet, needle jet and slow running jet will help restore the carburettor back to full performance and economy - check the schematic to see exactly which parts you should order.
This is a part engineered to Japanese quality control standards - buy and fit with complete confidence.
Order new carburettor seals and gaskets at the same time. Consider new throttle cables as well!