TB35EC trimmer stalls when given gas, trimmer head is not spinning fast enough to cut grass

If the line is spinning but not cutting then most likely you have wound in the reverse direction.

to much dirt got up in clutch housing and shoes are not making full contact unit needs to be dissembled and cleaned.

For all others with String trimmers, blowers and other 2 stroke style engines...
If no power on high, tends to bog, won't run once choke off, check these:

• Fuel Filter - It's IN the Gas tank; Just replace it
• Spark Arrestor at Muffler, it's a screen that tends to clog up and causes very restricted exhaust flow
• Spark Plug - again just replace it
• Carburetor, clean or install rebuild kit
• And adjust sorta hidden High/Low carburetor adjustment screws

Take a look here...

And here:

And one more...

Carburetor is probably gummed up inside. There are very fine needle-thin holes in the spray nozzel through which gas has to flow. if they are gummed up, you will have an engine that starts, but has no power. try to take the brass nozzel out of the bottom of the carburetor, it unscrews & may be kinda tight. but take it out & clean the smallest holes with a thin piece of wire. should work great after that.

You can find a complete trimmer head replacement at Hyperparts.com. Go into the Lookup By Application section and select the make and model of your trimmer to see a list of the heads they offer.

It sounds like the square end in the handle has rounded some and let cable slip

Take the shaft off at the motor,see if any thing is worn there.Also,take head off of end of weed eater,check for grass or any build up in there.

I have had a similar problem with an edging attachment. The socket that fit onto the shaft was worn, and the shaft would just spin, creating a lot of heat right there, but very little movement, and it would completely stall when you tried to use it implement, even though the moter still ran just fine. The cure, I'm sorry to say, was to replace the implement.
Best regards, --W/D--

Doesn't sound like piston and ring problem. Sounds more like the flex shaft that connects to the engine may have an end that is worn not allowing for the extra load when you connect the attachments. Check the ends of the top flex shaft.

hgffggkgjgjgbTry taping the bottom on a hard surface;HARD!;;;;;;;bjjjjjjkjjjjm4454541joojojojlj That did the trick for me for some reason it doesn't grab and it gets lose were it won't spin fast bearly cutting a blade of grass.