2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 175Get this manual

2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 175

Fuel System: Transient Enrichment System The transient enrichment system is device which keeps fuelair mixture ratio constant
throttle valve is closed suddenly, large negative pressure generated on cylinder side works on to diaphragm (3)The valve
(4) on the diaphragm closes the air (1), therefore, the fuelair mixture becomes rich with fuelThis system is to keep the
combustion condition constant by varying the fuelair mixture ratio by controlling air flow I827H1170044-01 "B": FuelAir mixture