In most models on the market, the fuel screw “L” is turned clockwise, however, there are trim tabs where the decrease and increase in the mixture flow occurs in the reverse order. If the lawn mower easily and quickly reaches high speeds, this will be the most economical mode. Next, unscrew the screw by ¼ turn and check the speed of maximum speed. At the first stage, with the trimmer working, slowly tighten the screw “L” until the beginning of intermittent operation or until it dies. To do this, start the engine and at idle let him work 10-15 minutes. The screw responsible for idling the motor (“T” or “AT”).Īdjustment of fuel supply at the minimum turnsīefore starting the carburetor adjustment of the gas trimmer, it is necessary to warm the engine to operating temperature.Direct adjustment of the trimmer carburetor is carried out by three adjusting screws: 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.Experts recommend rinsing it in a solution of water with detergents after every 10-15 hours. As you just learned, repairing your own equipment is easy when you follow our step-by-step guides. You don't have to leverage your savings to level your lawns. Secure the air filter lid with the thumbscrew. Install the air filter lid onto the air cleaner case. Install the air filter into the air cleaner lid. Reinstall the fuel cap onto the fuel tank. Insert the fuel filter (and fuel line) into the fuel tank. Reinstall the fuel filter into the fuel tank. If the ring clip slides backwards (further onto the onto the fuel line), reposition the clip and start again.ġ0. Perform this step in one continuous motion. The ring clip should expand slightly to accommodate the flared connection, and then tighten around the narrower portion of the fitting. Install the fuel filter onto the end of the fuel line. Slide the FUEL LINE CLIP over the fuel line and hold the clip approximately 1/4 of an inch from the end of the tube. (The tube needs to be squarely cut to install the fuel filter.) Use wire cutters or scissors to remove the angle that was added earlier. Insert the wire hook into the fuel tank and retrieve the incoming fuel line. Insert the RETURN FUEL LINE into the grommet and feed any excess (slack) into the fuel tank. Insert the INCOMING FUEL LINE into the grommet and feed any excess (slack) line into the fuel tank. Insert the FUEL VENT LINE into the grommet and feed any excess (slack) line into the fuel tank. Lightly coat the ends of the fuel lines with 2-cycle engine oil. (Tapered endings allow the lines to slide more easily into the new grommet.) Use wire cutters or scissors to cut similar angles (tapers) on the ends of the remaining fuel lines. One (or more) of the existing fuel lines may already contain tapered ends. Use a screwdriver (as needed) to press and seat the grommet into the ridge on the fuel tank. Install the new grommet onto the fuel tank. Lightly coat the edge of the new grommet with 2-cycle engine oil (this will lubricate the grommet for easier installation). Use a screwdriver to carefully pry the grommet out of the fuel tank. Pull the vent line up and out of the tank grommet. Pull the incoming fuel line up and out of the tank grommet. Pull the return fuel line up and out of the tank grommet. Remove the fuel filter from the fuel line with a twisting and pulling motion.ĥ. Insert the wire hook into the fuel tank and retrieve the fuel line containing the fuel filter. To make your own fuel line retriever curve the end of a sturdy length of wire into the shape of a hook. Remove the fuel filter from the fuel line. Unscrew and remove the fuel cap from the fuel tank.Ĥ. Remove the air cleaner assembly.ĭrain any excess fuel from the tank before servicing the unit. This article provides step-by-step instructions for removing and installing the fuel line grommet on an Echo trimmer (model SRM-225). Replacing the grommet is easy to do, especially when you follow the steps below. When this happens, you may notice fuel leaking from the top of the tank. Because it is made of rubber, the grommet will eventually deteriorate and crack. The fuel line grommet creates a seal between the fuel lines and the fuel tank. Whether you are a legendary landscaper or a weekend weed whacker, provides the parts, procedures and facts you need to fearlessly fix what fails you. String trimmer out of whack? It's time to face the fix.
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