Honda Outboards BF40A/BF50A Service Manual, Page 326Get this manual
BF40A-BF50A
-INTAKE MANIFOLD
1) Remove the throttle link rod taking care not to bend it2) 3) Remove the six 97 mm flange boltsSeparate the intake manifold and carburetor as shown
[4] INTAKE MANIFOLD
6 16 mm TORX BOLT (2)
REMOVAL: P5-7
x 15 mm DOWEL PIN (6)
DASH PDT DIAPHRAGM
mm PLUG (3)
[8] SEALING WASHER (3) Do not reuseReplace with new one when reassembly[17] No.3 CARBURETOR
DISASSEMBLY: P5-9 ASSEMBLY: P5-16