| 1. To remove the carburetor. |
| 2. To fill a float-operated chamber with fuel and to put under the carburetor a measured beaker with a funnel. |
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3. To take away the lever (2) from the screw (1). |
| 4. To turn a butterfly valve from an emphasis against the stop ten times, spending for each course about 3 with, putting these in action the accelerating pump. |
| 5. To measure amount of fuel in a beaker, to divide the received value into ten. The result is giving of the pump for one cycle. For one cycle the accelerating pump has to give (0,9±0,15) cm3 of fuel. |
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6. If the received result differs from specified, to adjust productivity of the accelerating pump, turning a cam (1), previously having weakened the screw (2). |
| 7. After adjustment to tighten the screw. |