1968 Evinrude Big Twin, Lark 40 HP Outboards Service Repair Manual P/N 4483, Page 6Get this manual
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EX GHANGER TUBE AND SI LD GUT-OUT SWIGH
GARBURETOR
FUEL GONNEGTOR LAMP -=-;,N SGREWS REAR EXHAUST GOVER
FRONT EXHAUST GOVER LEVEL PLUG
_ EXHAUST OUT