Honda Outboards BF40A/BF50A Service Manual, Page 69Get this manual
HONDABF3SA4I5A CHOKE KNOB ROD
DISASSEMBLYREASSEMBLY: 1) Pull the choke knob, then push it while holding the choke knob rodPull up the choke knob rod and disconnect it from the choke knob and choke arm A2) To reinstall the choke knob rod, set it on the choke arm A, push the choke knob, and connect the choke knob rod to the choke knobPull the choke knob as full as it goes
CHOKE KNOB ROD
CHOKE ROD
DISASSEMBLY: Hold the choke rod and push down the linkage bushing to remove it from the rod
(1] CHOKE ROO
LINKAGE
REASSEMBLY: 1) Connect the choke rod to the carburetor choke, then connect it to the choke armBe sure that the choke rod is connected as shown2) Push the linkage bushing up and set the linkage bushing on the choke rod[1]