DescriptionThis video provides step-by-step repair instructions for replacing the throttle control spring on an Echo hedge trimmer. The most common reasons for replacing the spring is when the throttle control lever won't return to the idle position or you cannot control the engine speed.
All of the information in this spring replacement video is applicable to the following brands: Echo
Tools used: 10mm wrench, 14mm wrench, flat head screwdriver
Step-By-Step Instructions1
Before you replace the throttle control spring on your hedge trimmer make sure the engine has cooled.
2
Next, you should remove the wire and boot from the spark plug to prevent the engine from accidentally starting.
3
Use a 14mm wrench to unthread the nut securing the on-off switch.
4
Now use a flat-head screwdriver to depress the retaining tab to release the handle cover.
5
Fully remove the cover and detach the throttle control lock lever.
6
You can now remove the throttle control lever and the old spring.
7
Before you install the new throttle control spring first insert the end of the throttle cable into the lever and secure it in the slot.
8
You can provide more slack for the cable by using a 10mm wrench to loosen the throttle cable locking nut on the carburetor and pushing the cable up.
9
Now position the new spring on the control lever then align the spring as you snap the lever into place.
10
If applicable, reposition the opposite end of the throttle cable in the carburetor bracket and tighten the locking nut.
11
Now snap the lock lever into place.
12
Align the eyelet terminal over the on-off switch position the handle cover then insert the switch through the hole in the cover and snap the cover into place.
13
Thread the nut to secure the switch.
14
With the repair completed reattach the wire and boot to the spark plug and your hedge trimmer should be ready for use.