PB-580 H/T
MAINTENANCE
X7505200708
45
© 01/20 ECHO Incorporated
Idle Adjustment
Before adjustment make sure that:
• Air filter is clean and properly installed.
• Spark arrestor screen and muffler are 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,
operating choke twice to clear
air from carburetor chambers.
3.
Check idle speed and reset if
necessary. If a tachometer is
available, 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
decrease idle speed.
Throttle Cable Adjustment
Level 1
If engine idle speed changes when blower pipe is moved, or engine will not
reach full wide open throttle speed, adjust throttle cable.
1.
Loosen handle adjustment
knob (C) and tilt Tube Throttle
handle forward to expose
Adjustment Screw (D).
A
D
C
