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Video & Articles: Appliance & Equipment RepairEcho String Trimmer Throttle Control Replacement #P005002050
Echo String Trimmer Throttle Control Replacement #P005002050
Skill Level
Total Parts Cost
$52.12Estimated Savings
$112.5003:38
- Description
This video provides step-by-step instructions for replacing the throttle control assembly on Echo string trimmers. The most common reason for replacing the throttle assembly is if the engine does not rev up when the throttle control trigger is pulled, and the problem is not merely that connections between the trigger and the throttle cable or the throttle cable and the throttle assembly have come loose.
All of the information in this throttle control replacement video is applicable to the following brands: Echo
Tools used: needle-nose pliers, combo wrench, Phillips screwdriver, small slotted screwdriver
All of the information in this throttle control replacement video is applicable to the following brands: Echo
Tools used: needle-nose pliers, combo wrench, Phillips screwdriver, small slotted screwdriver
Step By Step Instructions
1
Before you replace the throttle assembly 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 rotate the knob to release the air filter cover.
4
Next, depress the throttle trigger hold the throttle arm then release the trigger to detach the end of the throttle cable from the swivel.
5
Use pliers to lift out the cable.
6
Loosen the locking nut to fully release the cable from the throttle assembly.
7
Next, remove the mounting screws securing the throttle assembly to the carburetor.
8
Lift the old assembly out.
9
Prepare the new throttle assembly for installation by transferring the idle adjustment screw and the swivel from the old assembly to the new one.
10
To transfer the swivel, depress the shaft on the old assembly and use a small flathead screwdriver to remove the c-clip securing the swivel.
11
Position the swivel on the new assembly and secure it with the c-clip.
12
Now position the new assembly on the carburetor and replace the screws to secure.
13
Make sure the adjustment nut on the throttle cable is properly positioned then insert it into the slot in the throttle assembly.
14
Tighten the locking nut to secure the cable.
15
Rotate the throttle arm, confirm that the swivel is properly aligned then insert the cable into the swivel.
16
Now depress the throttle trigger to fully seat the cable.
17
Be aware that if the throttle cable is too tight, you can adjust it by repositioning the adjustment nut.
18
You can also reposition the idler adjustment screw to maintain a proper idling speed.
19
Make sure the air filter is fully seated in the cover. then realign the cover and rotate the knob to secure.
20
Reattach the wire and boot to the spark plug.
21
Be aware that if the engine runs improperly, you may need to calibrate the high speed jet on the carburetor to manufacturer’s specifications.
22
Are placement cap for the high speed adjustment screw is included with the throttle assembly and can be inserted into the screw hole after calibration.
Description
This video provides step-by-step instructions for replacing the throttle control assembly on Echo string trimmers. The most common reason for replacing the throttle assembly is if the engine does not rev up when the throttle control trigger is pulled, and the problem is not merely that connections between the trigger and the throttle cable or the throttle cable and the throttle assembly have come loose.
All of the information in this throttle control replacement video is applicable to the following brands: Echo
Tools used: needle-nose pliers, combo wrench, Phillips screwdriver, small slotted screwdriver
All of the information in this throttle control replacement video is applicable to the following brands: Echo
Tools used: needle-nose pliers, combo wrench, Phillips screwdriver, small slotted screwdriver
Step-By-Step Instructions
1
Before you replace the throttle assembly 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 rotate the knob to release the air filter cover.
4
Next, depress the throttle trigger hold the throttle arm then release the trigger to detach the end of the throttle cable from the swivel.
5
Use pliers to lift out the cable.
6
Loosen the locking nut to fully release the cable from the throttle assembly.
7
Next, remove the mounting screws securing the throttle assembly to the carburetor.
8
Lift the old assembly out.
9
Prepare the new throttle assembly for installation by transferring the idle adjustment screw and the swivel from the old assembly to the new one.
10
To transfer the swivel, depress the shaft on the old assembly and use a small flathead screwdriver to remove the c-clip securing the swivel.
11
Position the swivel on the new assembly and secure it with the c-clip.
12
Now position the new assembly on the carburetor and replace the screws to secure.
13
Make sure the adjustment nut on the throttle cable is properly positioned then insert it into the slot in the throttle assembly.
14
Tighten the locking nut to secure the cable.
15
Rotate the throttle arm, confirm that the swivel is properly aligned then insert the cable into the swivel.
16
Now depress the throttle trigger to fully seat the cable.
17
Be aware that if the throttle cable is too tight, you can adjust it by repositioning the adjustment nut.
18
You can also reposition the idler adjustment screw to maintain a proper idling speed.
19
Make sure the air filter is fully seated in the cover. then realign the cover and rotate the knob to secure.
20
Reattach the wire and boot to the spark plug.
21
Be aware that if the engine runs improperly, you may need to calibrate the high speed jet on the carburetor to manufacturer’s specifications.
22
Are placement cap for the high speed adjustment screw is included with the throttle assembly and can be inserted into the screw hole after calibration.
Applicable Product Model
Parts Needed
Cover
$52.12
Total$0.00
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