1984-1986 Mercury Force 4HP Outboards Service Manual, Page 19Get this manual
B Place retainer clip on needle and assemble to IloatFigure 14
NEEDLE VALVE (CLOSED)
Figure 15Adjust Fuel Level
Agure14Asmbllng Floet to CarburetorCDPostion Iloat with needle attached over body and lower needle into seatSlide float shaft in place
2Adjust lIoat drop: ABHold carburetor uprightFloat top should be 5 16 inch (7.9 mm) from lIangeFigure 16Adjust by bending tab B
6Adjust lIoat fuel level and 1I0at drop