Echo POWER PRUNER PPF-2100 TYPE 1/1E Operator's Manual

Also see for Power Pruner PPF-2100: Service data

261. Before adjusting the carburetor, clean or replace the air filter andspark arrester screen.2. Start engine and run for several minutes to reach operatingtemperature.3. Stop engine. Turn HI (A) speed needle CCW (counter clockwise)to stop. Turn LO (B) speed needle midway between full CCW andCW (clockwise) stops.4. Idle Speed Adjustment.-Start engine and turn idle (C) speed adjustment screw CW untilthe cutting attachment begins to turn, then turn the screw CCWuntil cutting attachment stops turning. Turn screw CCW anadditional 1/4 turn.5. Accelerate to full throttle for 2-3 seconds to clear excess fuel fromengine then return to idle. Accelerate to full throttle to check forsmooth transition from idle to full throttle. If engine hesitates, turnLO (B) needle CCW an additional 1/8 turn and repeat acceleration.Continue adjusting until smooth acceleration results.6. Check HI speed RPM at W.O.T. (Wide Open Throttle). HI speedRPM should be set to specifications found on page 13 "Specifica-tions" of this manual.7. Check idle speed and reset if necessary. If a tachometer is avail-able, idle speed should be set to the specification found on page13 "Specifications" of this manual.WARNING DANGERWhen carburetor adjustment is completed, saw chain should notmove at idle, otherwise serious personal injury may result.CARBURETOR ADJUSTMENTEmission ModelsLevel 2.Tools Required: Screwdriver with 2mm blade width, Tachometer(ECHO P/N 99051130017)Parts required: None.NOTEEvery unit is run at the factory and the carburetor is set in compliance with EPA Phase 1 and California EmissionRegulations. In addition, the carburetor is equipped with HI (A) and LO (B) needle adjustment limiters that preventsettings outside acceptable limits.