Honda BF50 (5HP) BF5A Outboard Motors Shop Manual., Page 22Get this manual
XONDA bPilot screw
If the pilot screw setting needs adjustment: 1) Turn the pilot screw in or out until the engine runs at the highest idle rpm, If the pilot screw has been removed and replaced, start with an initial setting of 2-38 turns out from the fully closed position2) Turn the throttle stop screw to obtain the specified idle speed
[PILOT SCREW
8THROTTLE CABLE
1) Remove the recoil starter
2) With the throttle grip in "SLOW" position, adjust the distance between the cable bracket and the end of the cable sheath to 9.0 0.5 mm (0.384 0.020 in) by loosening the lock nut and turning the adjusting nut3) Tighten the lock nut securely[I] THROTTLE