Ryobi

Carburetor adjustment
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Three screws. On some, there are only two screws. Some have only one screw. A few have none at all.

If there are any screws, one is nearly guaranteed to be an idle mix adjustment. With the engine warmed up & idling, turn that screw in (clockwise) 1/4 turn at a time until you can hear the idle speed drop a little. Back it out 1/4 turn and leave it alone. If the first 1/4 turn drops the idle speed, turn it OUT 1/4 turn and see if the idle speed rises more. When you get idle speed that stays the same when you make a 1/4-turn adjustment, go back to the beginning if this paragraph and repeat the first part.

If there are two or three screws, the next screw may be either an idle speed screw or a high mix screw. If it’s an idle speed screw, turning it in 1/4 turn will immediately RAISE the idle speed and turning it out will LOWER the idle speed. Adjust that screw until the string head (that cuts weeds) isn’t quite turning at engine idle. If it’s a high mix screw, its only effect will be at full engine speed. If the engine sounds throaty, turn that screw in 1/4 turn at a time at full engine speed At some magical point, the engine sound should turn brassy. If you turn the screw in past that point, the engine will lose power because it’s running too lean.

If there are three screws, then you have all three – idle mix, idle speed, and high mix.

There may be markings near the screws to identify them. Each manufacturer marks them differently, if at all. Some manufacturers simply rely on the screws’ locations to indicate what they do. It’ll be up to you to figure out which is which and make notes accordingly.

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

A clogged carburetor is most commonly caused by leaving fuel in the string trimmer for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the engine to stall.
If your carburettor has a main jet adjustment screw at the base of the float bowl, turn the screw clockwise until you feel it just touch the seat inside the emulsion tube. Then, turn the screw counterclockwise 1 to 1-1/2 turns. Replace the air cleaner assembly and start the engine for final carburettor adjustments.
One reason why one of these trimmers may die at full throttle is that too much oil is in the gas, which causes poor combustion. Improper operation, including overuse of the choke, can also be responsible. Poor combustion produces carbon deposits that foul the spark plug and exhaust port, making the problem worse.
If the carburetor is new or has been rebuilt, you should set it to “factory” adjustment. You can do so by adjusting the idle mixture screws to 1.5-2 turns out, and the idle speed screw to 1-1.5 turns in. Warm the Engine Up. The engine`s running temperature directly correlates with proper air and fuel mixtures.
If your trimmer engine idles, but stalls on throttle, check the following parts: the gasket, primer bulb, fuel filter, air filter, fuel vent, fuel line, and carburetor. The repair and symptom guide will help you better identify the part needed to be replaced and how.
Ratios. According to Royobi, you can make a 32:1 fuel ratio by mixing one gallon of unleaded gasoline – rated at least 87 octane – with 4 ounces of two-cycle oil in a container approved for storing gasoline.
If you`re mixing 1 gallon of fuel, pour until the oil level goes down to the next marker, which means you just poured out 2.6 ounces. Virtually all two-cycle oil containers have the same standard markings because nearly all contemporary two-cycle engines take a 50:1 gas/oil mixture.
Ryobi Small engine leaks gas. The carburetor gasket might be dried out or missing. If the leak is coming from the bottom of the carburetor, try replacing the carburetor gasket.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

My weed eater hedge trimmer runs for about 10 minutes and cuts off. It seems as though it is flooded, because it won’t start again until some time later. But it continues with the same pattern. I purchased a can of premixed gas/oil to make sure it was my mixture, to no avail. I have not replaced the spark plug yet, but I don’t think that has anything to do with it. Do you have any suggestions?
ANSWER : The plug can be the problem but also the air mix as well get the best plug you can

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How to repair clutch HS45 Stihl – RTO Weed Eater Hedge Trimmer 20cc, Reconditioned
ANSWER : I’m not familiar with your machine, BUT… most of those centrifugal clutches ARE NOT repairable, and must be replaced when failed.

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What size trimmer string does a husqvarna 223L weed eater use
ANSWER : This string trimmer will use .080 trimmer line

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Petrol weed eater will not start. Alomost starts
ANSWER : Hi Mark, I own a shop, we will not work on ryobi, have you gotten 2 seasons out of it? If so thats probably as good as it gets. But you can check carb settings. In the USA they come with limiters on the adjustment screws, not too much you can do(break them off) back your adjustments counter clockwise 1half turn.

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Husqvarna vs Echo gas weed trimmers…needing your opinion.
ANSWER : They are very reliable brands stihl is a very good brand also.

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I have a Toro Electric weed eater and cannot get spool off to change.
ANSWER : Did you try using a flat screwdriver between the head and the bump knob?

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Husqvarna 125 will not idle down. ( weed eater) only idle down to about 1/2 operating speed
ANSWER : If you can, adjust your idle speed screw. It is normally a good-sized Phillips screw that rests against the plate on the end of the throttle shaft. You can see it good herel

http://www.zamacarb.com/tipspage.html

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HOW TO PUT IN LINE WEED EATER FEATHER LITE PLUS FL26?
ANSWER : You can get a manual from the Weed Eater website.

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