Honda BF50 (5HP), BF5A Outboard Motors Shop Manual 2014, Page 32Get this manual
BF50BF5A CARBURETOR
Loosen the drain screw and drain the carburetor before disassembly Keep gasoline away from flames or sparksWipe up spilled gasoline at once
I ADJUSTMENT: P.21
PILOT SCREW
I ADJUSTMENT: P20
CARBURETOR BODY REASSEMBL Y: Blow open all carburetor body openings with compressed air be fore reassembly
THROTTLE STOP SCREW
FLOAT VALVE REASSEMBLY: Check for worn valve or weak springReplace if necessarySet the valve' on the float arm as shown