2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 174Get this manual
1G-7 Fuel System: Starter (Enricher) System Pulling the starter (enricher) plunger causes fuel to be drawn into the starter circuit from the float chamber (1)The starter jet (2) meters this fuelThe fuel then flows into the fuel pipe (3) and mixes with the air coming from the float chamber (1)The mixture, rich in fuel, reaches the starter plunger (4) and mixes again with the air coming through passage extending from behind the diaphragmThe two successive mixtures of the fuel with the air provide the proper airfuel mixture for startingThis occurs when the mixture is sprayed through the starter outlet port (5) into the main boreNOTE starter (enricher) system is operated almost the same way as choke 4 5