Question about Troy Bilt Tb70ss Gas Trimmer

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Engine won't go to full throttle in choke position 3

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  • Troy Master
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Sounds like you will need to clean your carburetor.
Be sure to use compressed air to blow out all the fuel and air passages.
Sometimes you can get by with priming the carburetor 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.
Keep in mind that the float for the carburetor must be level when you go to reassemble 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 rate me

Posted on Aug 29, 2010

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Posted on Jan 02, 2017

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SOURCE: engine run @ half choke but will not run in run position

It's starving for fuel. What is it? Sounds like the jets are plugged in the carb. or possibly water in the gas. Remove carb., disassemble, clean and put back together. You should get a rebuild kit for it first so you have new gaskets, etc. when you reassemble. It's a little more complex than I can put in words for you here.

Also empty and clean fuel tank too and start with fresh, clean fuel.

Posted on Mar 13, 2009

  • 57 Answers

SOURCE: Stops when given full throttle

Most likely carburetor needs adjustment.

Posted on May 15, 2009

#1 Taper
  • 1040 Answers

SOURCE: Ryobi SS30 trimmer starts fine and runs at when in full choke position to about half choke position. But when I put the choke lever to the full run position, it stalls out. Ryobi ss30 same problem of

You need to rebuild the carburetor. You will need to go to an outdoor power & equipment store of some kind to get a carburetor kit for your specific trimmer. It will come with various gaskets, (some of which you won't use), a needle valve, and a small screen that goes in the carb. Replace all old parts with new. New primer bulb is sold seperately. When you have the carb. apart, you will also need to clean the small ports with a Den Tek Brush (used for cleaning teeth). Use carb. cleaner when cleaning.

Jim

Posted on May 29, 2009

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