2003 Johnson ST 6/8 HP 4 Stroke Outboards Service Manual, PN 5005471, Page 107Get this manual

2003 Johnson ST 6/8 HP 4 Stroke Outboards Service Manual, PN 5005471, Page 107

FUEL SYSTEM
CARBURETOR
Check for correct float drop dimensionThis dimension affects the full opening of the inlet needle and is critical to correct operation of the carburetorWith carburetor body in normal running position, the float must drop open from base of carburetor to dimension shownFloat Drop Dimension HP

Apply RTV silicone rubber adhesive sealant to screw after adjustment

1 into 38 in(25 to 35 mm) Bend float lever tab to adjust float drop1
1Float chamber and gasket 2Idle adjustment screw and spring 3Carburetor body cover 4Idle mixture needle and spring

Base of carburetor body Float lever tab Float drop dimension