Prime engine starts gas burns out engine stops
SOURCE: Troy Bilt Trimmer 75SS stalls at full throttle. new gas
Hello. Let me assist you. Since your trimmer runs but stalls at ful throttle it is telling you that there is a fuel problem. Not enough gas is getting through the carbeurator to satisfy the engines needs on full throttle. Most likely the carbeurator is gummed up. A common problem. Let's see if we can un gum it by getting a can or carbeurtor cleaner. Go to any auto parts store and talk to the clerk about your need.
SOURCE: Troy Bilt TB 465SS Pony 4 cycle weed trimmer won't start
Sounds like you need to take the carb. apart and clean it. I like to use a Den Tek Brush, (used for cleaning teeth), to clean the small ports in carb. they work great for this job. Make sure to either clean or replace the small screen in thcarb. as well.
Jim
SOURCE: How to replace air filter on Troy-bilt TB20CS?
May be air filter but sounds more like your muffler is stopped up. First take the muffler off and see if it runs better without it. If so, burn the carbon out of the muffler and clean the muffler port on the engine. If not, then remove the four screw at the very end and disassemble. The ait filter is in that area. Diagram is located at
www.stollerlawnandgarden.com/.
Click on parts lookup in left hand column.
SOURCE: troy bilt 4 cycle string trimmer wont stay running
If this is an old unit, then the diaphragm is probably hardened.
Tests before hand would be:
1. Is the gas fresh and water free?
2. Is the spark-plug clean and snugly fastened?
3. Are you using the correct gas to oil mix ratio in your fuel?
4. yes...yes...yes...= bad diaphragm. Probably less than $5 for the part and a 1/2 hour to replace the part.
SOURCE: Troy Bilt string trimmer starts but dies when I
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.
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