1978 Johnson 2HP outboards Service Manual, Page 23Get this manual
3-6 bIf leakage still exists, remove the lead shot with an appropriate sharp toolSee Figure 3-14cClean and inspect casting openingIf the casting opening is normal, install new lead shot and flatten out with light hammer tapsCheck for leakageFUEL TANK aInspect the filler cap and gasket for wear, damage, or leakage; replace if necessarybRemove shut-off valveRemove gum and varnish deposits by washing in OMC Accessory Engine CleanerApply drop of OMC part number 200763 Gasoila to threads at shut-off valve on installation to fuel tankcInspect the fuel tank for leakageIf leakage occurs, replace tankdFlush tank with clear gasoline or solvent at least once yearFigure 3-14Removing Lead Shot
CARBURETOR REASSEMBLY
GENERAL INSTRUCTIONS Reassemble the carburetor, paying particular attention to the follOwing procedureKeep all dust, dirt, and lint out of the carburetor during reassemblyBe sure that parts are clean and free from gum and varnish when reassembling themReplace all gaskets and sealing washersDO NOT attempt to use original gaskets and washers, as leaks may develop after the engine is back in useFLOAT AND CHAMBER aInstall and tighten the high-speed nozzleber boss gasketInstall new float cham-