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Carburetor Adjustment

Introduction

Follow this guide to adjust the carburetor on a 2019 Echo Power Pruner model PPT-2620.

This procedure requires running the motor for several minutes. Only run the motor outside or in a large, well-ventilated room. Do not run the motor in an enclosed space.

Wear ear protection while the motor is running.

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  1. Carburetor Adjustment, Install the inductive pickup lead: étape 1, image 1 de 2 Carburetor Adjustment, Install the inductive pickup lead: étape 1, image 2 de 2

    • Feed the inductive pickup lead wire through one of the two holes in the lower-left corner of the tachometer.

    • Bend the wire around and feed it through the second hole, then pull it tight.

    Modifier

  2. Carburetor Adjustment, Attach the tachometer to the spark plug wire: étape 2, image 1 de 2 Carburetor Adjustment, Attach the tachometer to the spark plug wire: étape 2, image 2 de 2

    • Clamp the inductive pickup lead alligator clip onto the spark plug wire.

    • Make sure the inductive pickup lead wire is not touching anything except the tachometer.

    Modifier

  4. Carburetor Adjustment, Start the motor: étape 3, image 1 de 2 Carburetor Adjustment, Start the motor: étape 3, image 2 de 2

    • Wear ear protection for the remainder of the procedure.

    • Start the motor and let it run for two minutes to ensure it reaches operating temperature.

    Modifier

  5. Carburetor Adjustment, Open the choke: étape 4, image 1 de 3 Carburetor Adjustment, Open the choke: étape 4, image 2 de 3 Carburetor Adjustment, Open the choke: étape 4, image 3 de 3

    • Make sure the choke is fully in the open position.

    Modifier

  6. Carburetor Adjustment: étape 5, image 1 de 2 Carburetor Adjustment: étape 5, image 2 de 2

    • Use a Phillips screwdriver to adjust the carburetor idle screw until the tachometer reads as close to 3100 RPM as possible:

    • Turn the idle screw clockwise to increase RPM

    • Turn the idle screw counterclockwise to decrease RPM

    • Once the idle has been set, shut off the motor and disconnect the tachometer.

    Modifier
Conclusion

The procedure is complete, no further action is required.

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Sam Omiotek

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