Bilt Tb70ss Gas Trimmer

Troybuilt less than 2 years old i think model is tb-90.The unit runs great while at idle but when you give it the trottle to operate it want stay running ???
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How do you remove the cutter head from a troybuilt TB539E string trimmer

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The trimmer can sputter and stall if it isn`t getting enough fuel, and that can happen simply because the fuel filter is dirty. Fuel filters are inexpensive, and it`s more practical to replace a dirty one than it is to try to clean it. On most models, it`s in the gas tank or on the cap.
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.
So, an air filter might clog over time. Once blocked with dust and debris, it cannot supply the required amount of oxygen to your trimmer` engine resulting in power loss. Find the air filter, take out this component, clean and reassemble it. Replace the part if you cannot reuse it.
The most likely culprit is a dirty or clogged air filter. Issues with your fuel pump or fuel filter can also cause your engine to idle then die with any throttle. If you have an older car, it could also be a bad carburetor.
When your trimmer starts and runs on choke, it could be because the check valve in the gas cap is clogged. Start the trimmer and gently unscrew the gas cap halfway off. Turn the choke off and assess. If the engine is still running, that means the gas cap may be the culprit.
The 503939601 Air Purge does just what the part name says. It purges the air out of the carburetor. Then it forces fuel from the fuel tank and fuel line in to the carburetor.
Get your can and spray the liquid on the carburettor. Make sure you don`t go overboard with spraying the liquid as it may end up harming the device. Rest assured that WD-40 is potent enough to work its magic even if it is sprayed decently on the carburettor.
All Weed Eater brand two-cycle gas trimmers use a 40:1 ratio of gas to oil. That`s equal to 3.2 ounces of oil to 1 gallon of regular gas.
It`s normal for the cutting line to wear down as you use it, but the trimmer line can wear faster than you expect if you`re cutting tough or thick weeds, if you`re cutting against hard surfaces such as rocks and walls, or if the line is spinning too fast.
Clean the Exhaust Spark Arrestor Screen

As with plug fouling, too much oil in the gasoline, inferior oil, a dirty air filter and/or continued operation at less than full throttle will plug the screen with carbon deposits. This prevents exhaust gas flow, which leads to power loss.

When the throttle body gets dirty, it has a direct effect on how smoothly the engine operates. Signs indicating a problem include rough idling, jumpy or sluggish acceleration, poor fuel economy, and stalling. With the use of a throttle body cleaning product, the dirt and debris buildup are easily removed.
If you live in a warm climate you may not need a choke. Also, most race vehicles will use a carb without a choke. If you do require a choke, you can choose the one that best suits your needs. If you want more control, you can choose a manual choke.
Why would the engine only run while the choke is on or with repeated manual priming? An engine that requires the choking (partial or full) after initial engine warm up is an indication that the engine fuel air mixture system is out of adjustment.
If there is too much oil in the mixture, it can cause excessive smoke in the exhaust, oil leaking from the filter and loss of power. Too little oil allows the piston and cylinder to become hot and destroys the engine. You must first remove the old fuel and oil mixture to replace it with the correct ratio.
Remove the air filter and spray carburetor cleaner into the intake. Let it sit for several minutes to help loosen and dissolve varnish. Replace the filter and try starting the trimmer. If this doesn`t solve the problem, consider disassembling the carburetor to give it a more thorough cleaning.

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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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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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Weed eater will not run in high speed but will idle
ANSWER : Lack of fuel is my first thought. Check to be sure the trigger control is working at the carb. From there I would suspect plugged fuel line or plugged carb, (most likely contaminated fuel) either way I would suggest someone that knows about these. Hope this helps

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Weed eater will start but the head will not rotate. its like some thing is not connected.
ANSWER : Hello snap77b:

From your Description it Sounds like the Shaft May have Slipped Out of the Power Head and the Drive Cable is Not Engaged to the Drive, the Clutch is Worn Out, the Drive Cable is Worn and Requires Replacing, the Trimmer Head has Slipped and is Not Engaged to the Drive Cable or the Trimmer Head Gearbox is Bad and Requires Replacing.
>>Send me the Model Numbers Off the Unit, Please. With these I can Locate the Proper Manual and Better Assist you.
Please, Do Not Hesitate, If I Missed Something or you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Be Safe and Be Happy. Thanks.
Good Luck
Respectfully
jbridger (John)

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Weed eater won’t run
ANSWER : Sounds like you may just have a dirty carburetor.Youwill need to disassemble the carburetor and spray with carb.cleaner.Make sure the small screen is free of debris. (Should be able to seedaylight through it.)Use a Den Tek Brush, (http://www.drugstore.com/products/prod.asp?pid=165357&catid=1152),to clean the small portals in carb. These portals can become blocked. Reassemble and start.If the carb. parts are more than 4 years old, you may have to replace them.If you need further assistance, just let me know.Jim

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STRING KEEPS BREAKING ON A TROY BILT WEED EATER TB539E
ANSWER : Take a look at the hole in the spool where the business end of the string comes through. There should be a smooth metal grommet or smooth short tube there. If the metal is missing, then the string is breaking because it rubs against plastic and heats up very quickly. Or the tube or grommet might have a rough or sharp spot. You might be able to polish it up with a Dremmel type of tool.

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My stihl weed eater fs85 hard to start when hot
ANSWER : Try loosening the gas cap to relieve any pressure, then tightening it back up. Usually you will just need to barely unscrew it and then screw it back even before you pull the rope.

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A lot gas leaking coming from gas tank hose goin to carbureiro.
ANSWER : Those fuel lines have a track record of disintegrating, take pieces of each hose to local repair shop or dealer and get new fuel line usually called tygon and is yellow in color. Look how the hose is set up before taking apart maybe take pictures. Good Luck…

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