HCS-2810 / 3810 OPERATION
X7702248300 21
© 09/19 ECHO Incorporated
5. Choke
After engine fires (or 5 pulls), 
move choke (B) to the RUN          
( ) (OPEN) position. Restart 
engine if necessary and allow 
unit to warm up at idle for 
several minutes. 
Note:  If engine does not start with choke in “RUN” position after 5 
pulls, repeat instructions 2 - 5.
The blades must not move at idle, otherwise serious personal 
injury may result. Periodic carburetor adjustment may be 
necessary to assure blades do not move at idle. If blades move, 
readjust carburetor according to “Carburetor Adjustment” 
instructions in this manual or see your Dealer.
6. Throttle Trigger
After engine warm-up, grip the throttle handle with left hand and support 
handle with right hand. Depress the throttle trigger lockout, and gradually 
depress throttle trigger to increase engine RPM to operating speed.
Starting Warm Engine
The starting procedure is the same as Cold Start except DO NOT close the 
choke.
The blades must not move at idle, otherwise serious personal 
injury may result. Periodic carburetor adjustment may be 
necessary to assure blades do not move at idle. If blades move, 
readjust carburetor according to “Carburetor Adjustment” 
instructions in this manual or see your Dealer.