2007 Johnson 2 HP 4-Stroke Service Manual, Page 66Get this manual
FUEL SYSTEM CARBURETOR Remove the needle valve from the float
Cleaning and Inspection
Clean carburetor components thoroughly with cleaning solvent and compressed air before inspection
WARNING 1
Wear safety glasses to avoid personal injury, and set compressed air to less than 25 psi (172 kPa)
IMPORTANT: Do not place any rubber, plastic
1Needle valve 005979
Remove the main jet
or non-metallic parts in cleaning solvent, as severe damage or deterioration will resultDo not use wire or small drill bit in order to clean the orifices and jets of the carburetor