1977 Johnson 2HP Outboards Service Manual, Page 18Get this manual
SECT.OM FUEL SYSTEM
PAGE DESCRIPTION THEORY OF OPERATION REM9VAL OF FUEL AND CLEANING, INSPECTION AND REPAIR REASSEMBLY OF LEAF VALVESMANIFOLD, AND CARBURETOR MOTOR ADJUSTMENTS
3-2 3-2 3-3 3-3 3-4 3-6