Keihin Accelerator Pump Lower/Upper Check Valves

Keihin Accelerator Pump Lower/Upper Check Valves

Keihin Accelerator Pump Lower/Upper Check Valves

The pump diaphragms in Keihin FCR carbs was originally designed to feed FOUR carburetors in a row on bigger displacement motorcycles. The single cylinder dirt bikes with FCR-MX carbs use a "LEAK JET" to reduce the total pump volume squirted, by