Echo PB-755ST User Manual

Page 24

Level 2.

Parts required: None.

NOTE

Every unit is run at the factory and the carburetor is set in compli-

ance with emission regulations. Carburetor adjustments, other than

idle speed, must be performed by an authorized ECHO dealer.

Before Adjustment

Check that:

• Air filter is clean and properly installed.

• Spark arrestor screen is free of carbon.

• Blower pipes are installed.

1. Start engine, run at idle for one minute.

2. Complete warm up by running at full throttle for 5 minutes, oper-

ating choke twice to clear air from carburetor chambers.

3. Check idle speed and reset if necessary. If a tachometer is avail-

able, idle speed screw (A) should be set to the specifications

found on "Specifications page" of this manual. Turn idle screw

(A) clockwise to increase idle speed; counter clockwise to de-

crease idle speed.

This manual is related to the following products: