How to Replace the Intake Gasket on an Echo Trimmer (Model SRM-225)

String trimmer out of whack? It's time to face the fix. Whether you are a legendary landscaper or a weekend weed whacker, eReplacementParts.com provides the parts, procedures and facts you need to fearlessly fix what fails you.

The intake gasket forms a seal between the carburetor and the air cleaner case. The gasket also prevents dirt from entering the carburetor. Typically, this gasket only needs to be replaced if it is damaged during related repair procedures. If the carburetor is removed from your trimmer for any reason, the intake gasket should always be inspected (and replaced as necessary).

This article provides step-by-step instructions for removing and installing the intake gasket on an Echo SRM-225 trimmer.

Let's get started.

  REMOVING THE INTAKE GASKET [top] 1. Remove the air cleaner assembly.

Loosen the thumb screw.

Remove the air cleaner lid.

Remove the air filter.

    2. Remove the intake gasket.

Loosen the (2) bracket retaining screws.

Remove the air cleaner case (along with the bracket and the screws) from the engine.

Remove the intake gasket. Typically, the gasket will fall separately from the surrounding components; however, it may occasionally remain attached to either the back of the carburetor or to the insulator block.

  INSTALLING THE NEW INTAKE GASKET [top] 3. Install the new intake gasket.

Thread the (2) mounting screws through the mounting holes on the air cleaner bracket and the air cleaner case. The bracket should be flush against the interior of the air cleaner case (on the same side as the choke valve).

Thread the screws (protruding from the air cleaner case) through the holes on the carburetor assembly.

Note that there are two small holes on the new intake gasket (besides the main intake opening and the two mounting holes). These small holes need to align with the small hole on the insulator block.

Thread the screws through the mounting holes on the new intake gasket and slide the gasket flush against the carburetor.

Install the intake assembly (bracket, air cleaner case, carburetor and intake gasket) onto the intake insulator block.

Secure the intake components (bracket, air cleaner case, carburetor and intake gasket) with the screws.

  REASSEMBLING THE UNIT [top] 4. Reinstall the air filter.

Install the air filter into the air cleaner case.

  5. Reinstall the air filter lid.

Install the air filter lid onto the air cleaner case.

Secure the air filter lid with the thumbscrew.

You don't have to leverage your savings to level your lawns. As you just learned, repairing your own equipment is easy when you follow our step-by-step guides. Not only did you restore trimmer functionality at a fraction of the cost of replacement; you have taken the edge off of future repairs, wherever you may find them.

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