DescriptionThis video provides step-by-step repair instructions for replacing the throttle control trigger on an Echo string trimmer. The most common reason for replacing the throttle control trigger is when the engine doesn’t throttle up when the throttle control trigger is pulled.
All of the information for this throttle control trigger replacement video is applicable to the following brands:
Echo
Tools needed: Torx screwdriver
Step-By-Step Instructions1
Before you replace the throttle control trigger on your string trimmer first make sure the engine has cooled.
2
Next, remove the wire and boot from the spark plug to prevent the engine from accidentally starting.
3
Now, remove the handle screws and separate the two halves of the handle.
4
Note the orientation of the spring then lift the throttle control trigger out and remove the spring.
5
Now rotate the trigger to release it from the throttle cable.
6
Install the new throttle control trigger by first inserting the cable.
7
Next, insert the spring then position the new trigger on the mounting pin making sure the spring is properly seated.
8
Confirm that the cable is fully seated in the groove on the handle then rejoin the two halves of the handle.
9
Replace the screws to secure.
10
Confirm that the new throttle control trigger works properly then reattach the wire and boot to the spark plug.