1971 Johnson 2HP outboards Service Manual, Page 21Get this manual
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 CleanercInspect the seams of the fuel tank for leakageIf leakage occurs, replace tank or repair the damaged seam
Figure 3-14Removing Lead Shot
The fuel tank MUST be entirely free from gas fumes before weldingFlush the tank thoroughly with solvent and allow to dryMake sure that filler cap is removed while weldingdFlush tank with clear gasoline or solvent at least once yearFIL TER
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 nozzleInstall new float chamber boss gasket