Question about Troy Bilt Tb70ss Gas Trimmer

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Weedeater want stay running - Troy Bilt Tb70ss Gas Trimmer

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  • billybob44 Apr 18, 2009

    I HAVE A WEED EATER THAT IS ALMOST NEW, IT WONT STAY RUNNING.

  • sde628 Apr 18, 2009

    I have a tb425cs some integral parts came loose and are rattling around in the gas tank. How do you put them back on?


  • Anonymous Apr 21, 2009

    weed eater wont stay running

  • ghv45 Apr 23, 2009

    GAS TRIMMER WILL START BUT STALLS WHEN I GIVE IT GAS. ONLY TIME WILL MAINTAIN RUN IS WHEN FULL THROTTLE AND IN STAGE TWO. AFTER PULLING OFF REAR COVER, I NOTICED THAT A VERY FINE MIST OF GAS IS SPRAYING FROM CARBURATOR. TRIMMER IS OUT OF WARRNANTY AND NEED SPECIAL TOOLS TO ADJUST....ANY OTHER SUGGESTIONS..

  • Anonymous Apr 26, 2009

    I have the same problem and this is my second Troy-Built TB70ss 
    having the same problem it runs in stage 2 but in stage 3 it dies

  • jgroux May 17, 2009

    My 2-cycle gas trimmer will idle but dies when given gas

  • Anonymous May 17, 2009

    pos will start & idle, but will not run when giving it gas

  • Anonymous May 18, 2009

    it will not stay running

  • lydia_oldham May 22, 2009

    I have a similiar problem. Mine starts fine, but when you give it gas it dies. You can give it just a little gas and it runs, until you pick it up. It's a Troy Bilt TB70SS.

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  • 42 Answers

My guess is that your fuel lines and/or primer bulb has a crack or hole in them. Check these out and let me know the results. I can also recommend a great place to get these from if they are bad. Hope this helps.

Posted on Mar 11, 2009

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I have a husqvarna128 weedeater already cleaned the carb not the prob it will only stay running if the choke is halfway and you pump the throttle any suggestions?


Its definitely the carb. "cleaning" the carb usually is not a fix alone on those 2 cycle carbs. You should rebuild and clean it. The small diaphrams in those get tiny holes, and the fuel now days plays havoc on them.
Carb kits are inexpensive, just make sure you re-assemble everything in correct order.

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Its obviously fuel starvation, start withe the easy stuff first, use a peice of bent wire to hook the fuel line out through the open filler hole, the filter on the end then needs to be pulled off and replaced, try this first before we get into the carb.

Jun 25, 2013 | Lawn Trimmers & Edgers

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Model ut21004 homelite gas weedeater want stay


fuel issue, look for cracks or holes in the two lines from tank to prime bulb, check prime bulb, adjust/clean carburetor, may also need to check filter inside tank it is connected to the bigger of the two hoses. Tim

May 30, 2011 | Homelite Mighty Lite Lawn Trimmer

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Primer bulbs stays sucked in and weedeater will only start with starting fluid but will not stay running.This is a new weedeater only used a few times.


Sounds like you will need to clean your carburetor.You could have gotten some gas with some trash in it or your gas container has trash in it.
Sometimes you can get by with priming it a few times, and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
If the mower/weedeater is over a couple years old, then I also recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
When you clean your carburetor and remove the jet screws, You will first seat the jet screws and count the number of turns it takes to seat the jets from their original position.
That way when you go to put the jets back in, you know how many turns they were in/out.
Please do not forget to rate me,
Thanks
Good Luck,
I hope this helped

Aug 03, 2010 | Ryobi Lawn Trimmers & Edgers

1 Answer

I changed the fuel line going from the fuel tank to the primer bulb and now my weedeater will not stay running and my primer bulb is not holiding fuel.


Make sure the fuel line is a good fit to the carb. ... If is sucking any air at all it won't run right.. Also check that the fuel line in the tank is still hooked up...

May 20, 2009 | Ryobi Lawn Trimmers & Edgers

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