An outboard motor 12 wherein the at least one air introduction passage comprises a pair of air introduction passages provided at opposite lateral sides of the intake silencer and extending downwardly along {HEAD ~ the second side} of {TAIL ~ each cylinder head} 
An outboard motor 12 wherein the at least one air introduction passage comprises a pair of air introduction passages provided at opposite lateral sides of the intake silencer and extending downwardly along { HEAD ~ the second side } of { TAIL ~ each cylinder head }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL