How to Troubleshoot a Stalling Gas-powered Weed Eater Engine

Lead Image
  • 1-2 hours
  • Beginner
  • 0-50
What You'll Need
Weed eater engine spare parts

Nothing is more annoying than when your equipment fails, such as when a weed eater engine chokes and dies in the middle of your yard work. While this can be frustrating, you can more often than not remedy the cause without any major expense or professional help. To get your gas-powered weed eater running again, here is what you need to do.

Check the Condition of the Engine

There are a number of reasons why your weed whacker’s engine could stall while in use, a dirty filter, low fuel level, and faulty electrical system being among them. To determine the source of the problem, try to turn your weed eater on again and see if you can hear any activity in the engine. Fixing a frozen engine will not be so simple and may be outside the skill level of most DIYers, but an engine that sputters before it dies is easier to deal with.

Adjust the Filter

Before anything else, always check for the problems with the simplest fixes, starting in this case with the air filter. This part is one of the most fickle; if it is wide open, your engine gets too much air and chokes, and if it is tightly closed, no air passes through it and your engine stalls. To make sure that find that nice middle ground, re-install the filter properly.

After making any necessary adjustments, turn the weed eater on and see if it continues to choke. If it runs smoothly, then you are in business. If not, you will need to check the other parts of the weed eater for possible problems.

Check the Fuel Level

If your weed eater coughs and sputters then dies, there is a big possibility that you have run out of fuel. To see whether this is the case, check the actual fuel in the tank (and compare it to the reading on the gauge for accuracy while you’re at it). If there is still a lot of fuel but the machine won’t start, check out the fuel tubing. Sometimes, this can be disengaged by accident or it may be damaged such that your engine is being deprived of its source of energy. If this is the case, put the tubing back into place or replace it completely.

Check the Spark Plug

A corroded, damaged, or improperly installed spark plug may prevent your engine from starting as well. Replace a damaged or corroded one with a new one or reinstall the current one properly. Then, test the rest of your machine’s electrical connections with a multimeter to be sure they are getting power.

Check the Screws

The high and low screws on your weed whacker can be the root of your engine trouble as well. Make sure that they are properly set in their positions. Adjust them in half turns in the opposite directions and see what happens. Usually, the engine starts when you hit the right setting.

With any luck, you won’t make it all the way through these steps before you find and fix the source of your weed eater’s troubles.