DescriptionThis video provides step-by-step repair instructions for replacing the gas cap kit (which includes the gas cap, check valve, and seal) on an Echo string trimmer. The most common reason for replacing the gas cap is when it is cracked or damaged.
All of the information for this gas cap kit replacement video is applicable to the following brands:
Echo
Tools needed: small slotted screwdriver, needle-nose pliers
Step-By-Step Instructions1
Before you install the gas cap kit 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 unthread the old gas cap and pull the retainer out of the tank if applicable
4
Be prepared for some fuel to spill.
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Next, release the check valve and vent tube and slide off the retaining ring.
6
Use a small flathead screwdriver to help remove the old check valve from the vent tube
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You’re now ready to install the new gas cap kit.
8
Insert the new check valve into the vent tube and secure it with the retaining ring.
9
Position the new check valve in the slot in the starter housing.
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Now position the gasket in the new gas cap.
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If applicable, remove the retainer from the old gas cap and snap it into place on the new one.
12
Insert the retainer into the tank, then thread the new cap on and tighten.
13
Attach the wire and boot to the spark plug and your string trimmer should be ready for use.