Execution order
1. Remove the carburetor.
2. Fill the float chamber with fuel and place a measuring cup with a funnel under the carburetor.
3. Move the lever (2) away from the screw (1).
4. Turn the throttle valve from stop to stop ten times, spending approximately 3 seconds on each move, thereby activating the accelerator pump.
5. Measure the amount of fuel in the measuring cup, divide the resulting value by ten. The result is the pump feed per cycle. The accelerator pump should feed (0.9±0.15) cm³ of fuel per cycle.
6. If the result obtained differs from the specified one, adjust the performance of the accelerator pump by turning the cam (1), having first loosened the screw (2).
7. After adjustment, tighten the screw.