Honda BF115A, BF130A Outboard Motors Shop Manual., Page 118Get this manual
HONDA BF115A-130A
4) Disconnect the IAC valve connectorThe MIL should come ON this time
5) Wait until the engine speed stabilizes, then checkthe idle speed6) If the idle speed is outside the specification, adjust by turning the idle adjusting screw in or out
Idle speed (At neutral)
600 30 rnin-I (rpm)
7) After adjustment, stop the engine and apply Nippon Paint Uni-pack 200 or equivalent the entire surface of the idle adjusting screw head
IDLE ADJUSTING SCREW IDLE ADJUSTING SCREW
Apply here