2007 Johnson 2 HP 4-Stroke Service Manual, Page 69Get this manual
FUEL SYSTEM INSTALLATION
Leakage Check
Twist the air-vent screw on the fuel tank cap counterclockwise to open the vent
Throttle Adjustment
Fully close the throttle control gripTurn the idle adjusting screw counterclockwise until the screw does not touch the stopper plate
1Screw 2Stopper plate 005971