Honda BF115A, BF130A Outboard Motors Shop Manual., Page 24Get this manual
HONDA BF115A-130A
From 2-17 From 2-17 Check whether secondary air is being sucked Loose throttle body assembly
mounting boltslnutsOr check the gasket for damage and replace i1 necessary (P5-57)Loose intake manifold mounting nutsOr check the packing for damage and replace if necessary (P5-7 1)Loose IAC valve assembly mounting boltsOr check the packing for damage and replace if necessary (P5-74)Loose IAT sensor mounting boltsOr check the O-ring for damage and replace if necessary (P5-74)Check the PCV tube and the vacuum tube for damage, and replace if necessary (P5-73 and 77)Check for loose fuel line compmounting nuts (P5-59)Check the fuel injectors and seal rings for damage and replace if necessary (Inspection: P5-45, Replacement: P5-59)
Engine sometimes misfires