How does the choke on a 1984 mercury 80hp 4cylinder work? I have only been around the inline 6's and they have the flapper that covers two of the the carbs resulting in a overly rich mixture when the choke is applied. The carbs on this 80hp have another linkage connecting the two carbs to the solenoid that turns a valve on each carb. Does this valve let extra fuel in or does it close off a air bleed of some type? I am having a hard time staring this engine but will fire up and run perfect after squirting some fuel in the carbs. I am beginning to wonder if I am choking it correctly. Does this type choke work like an enricher? Another words, the longer I hold the choke the more fuel runs into the the engine regardless if the engine is cranking?