Chrysler 100, 115 and 140 HP Outboard Motors Service Manual, OB 3439, Page 44Get this manual
Subsection
_ CARBURETORS
GENERAL
This subsection describes the adjustmentdisassemblyrepairand reassembly of th carburetors Fuel enrichment is controlled by calibrat io of the choke shutter plateThe shutter plate may ntain areas open to atmosphere or the top half may be spring hinged to open during heavy vacu umEither method can raise or lower the suction at th discharge ports increaSing or redU Ci ng fu el delivered depending on open areas or hing spring tensionFigure 1