My 2 cycle gas trimmer will not start? It's only 2 years old

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TB22 EC Curved Shaft String Trimmer by Troy-Bilt

www.troybilt.com/.../troybilt/TB22EC-trimmer

Troy?Bilt Products
Rating: 3.7 - ‎232 votes - ‎$99.99 - ‎In stock
25cc, 2-Cycle Gas Trimmer / Attachment-Capable Design ... The TB22 EC gas string trimmer is both JumpStart™ and TrimmerPlus® attachment capable, making ...

Gas Trimmer ' TB635 4-Cycle Curved Shaft ... - Troy-Bilt

www.troybilt.com/.../troybilt/tb35-ec-curve-shaft-gas-...

Troy?Bilt Products
Rating: 3.3 - ‎32 votes - ‎$179.99 - ‎In stock
The TB635 EC curved shaft gas trimmer with SpringAssist™ technology features the new Click N Trim™ bump head, making line replacement easier than ever. ..... next one they put on - will only run for about 4 seconds. they've had for about 2 ... Both String Trimmer and Edger work great, easy to start and very low vibration.

be sure fuel filter is on the primary fuel line in the tank.check primer bulb and fuel lines.also check fuel tank cap.vented cap may be stopped up

There are 2 manuals available from MTD

TB525ET - TROY BILT - 4 CYCLE GAS TRIMMER/EDGER (02/07 - 04/07)
and
TB525ET - TROY BILT - 4 CYCLE GAS TRIMMER/EDGER (04/07 and after)


Thanks For Using Fixya. Dennis

how do you put string on troy bilt 4 cycle curved shaft TB20CS

Is it 2 cycle or 4 cycle? Meaning, does it take plain gas, or mixed gas?

Clean the plug, clean the carb with either choke cleaner (4 cycle) or wd-40 (2 cycle) by spraying it into the choke hole after you take off the air filter.

You may also want to spray some of the choke cleaner or wd-40 into the gas tank with the gas to help clean out the whole fuel system.

Only use choke cleaner for 4-cycle regular gas units. For mixed gas, use wd-40 in place of choke cleaner.

Try to start it and then go back and forth from half choke to full choke until it starts picking up.

Turn the bump knob clockwise to loosen on my tb490bc.

Check and clean your spark arrestor located behind a diverter plate on outside of muffler. You'll need a #25 Torx, or one slot screwdriver and wrench to take the plate off. Clean it with carb cleaner and wire brush and re-install. If this screen gets clogged, it could lead to fuel spray coming out of carb throat. Clean and re-oil the sponge filter while you're at it. Hope it helps!

Try mixing up some fresh gas mixture if it is over 30 days old it is considered bad gas. Or the carburetor may need to be rebuilt.

I have the same model from Troy-Bilt. I have only had it about 4 or 5 months. Mine has started using a LOT of oil. I noticed a significant increase in temperature compared to my old Husqvarna 2 cycle. Mine does not completely stall, but it does start to sputter when it gets hot. I am going to take mine back to Lowe's where I bought it. So far I am VERY unhappy with the TBP6040.

try taking the carb off and you should find 2 adjustment screws on it. turn those in until they stop, do not force tight. while doing this be sure to keep and eye on how far you turn them in. they likely wiil be set at 1 1/2 turns. now that you have done this unsrew them all the way out and get some carb cleaner to spray in there and rinse any old or dried up gas out. then replace the screws at the same setting they were before you took them out. this should take care of it.