Whenever I press the throttle button on my weed wacker, it cuts off. What's going on? The fuel is full and I pressed the little rubber clear button three times to get fuel in the fuel manifold. Then it just cuts off.

 

usually, a piece of plastic breaks somewhere near or on the carb.

 

What would that have to do with a mechanical engine?

 

Is the choke on?

 

It's set to full on or open.

 

well, if the carb isnt working right................

 

You're still going to have to point out the link between a carb and a piece of broken plastic. I got three hours of sleep last night.

 

you're going to have to open it up to inspect it.
Usually, something breaks off, causing the engine to not get air or fuel.
but it is a case by case basis. and you'll have to open it up to inspect.

but it is idling. hmmm.

 

Yes, it's idling, which means it's getting fuel and air. It's only when I press the gas handle will it cut out and stop.

 

2 stroke or 4 cycle?
How old is it?

2 stroke can be either loss of spark as the coil gets hot, or a a bad gas tank vent.

Also if your carb is adjustable, open the high speed adjustment a bit.

If not adjustable, keep the choke on a little, while you run it.

 

How old is the fuel in it? Gas these days will not last more than a month or two unless it's been treated.

My brother's lawn mower was doing the same thing (idling but running like garb). Turned out he forgot to treat the gas in the fall and the fuel filter was gummed up. The gas can also gum up the carb and other areas.


When is the last time it ran correctly?

 

Four cycle, whichs means I don't have to mix oil and fuel.

It doesn't matter how open or closed the choke or throttle setting is, it will idle all day long and be fine. As soon as I press the throttle button to run it faster, it cuts out and stops.

 

It last ran correctly about a month ago. Maybe I'll try the fuel filter. I'll try to take video of it tonight.

 

You said it idles, does it stay idling? Is the oil mixed in the fuel properly? I'd let it idle for a bit (warmup) and then try lightly on the gas again to see if it'll cut out.

 

^ four cycle, so no mix.
if the fuel filter is the kind that looks like a stone and is in the tank, try removing it and see if that helps.

 

Check your fuel & air lines to see if you have holes/leaks.

If the carb is not adjustable, and the choke in any position does not solve the problem, then chances are the carb is shot. Get a new carb or new week whacker.

 

Sounds like its flooding when you give it gas. Lack of air problem if I had to guess. Check for a clogged air intake or filter.

 

I've been using gas powered trimmers for a while now.. from 20/25cc Shindaiwa's to 35cc Craftsman and Honda 4 stroke trimmers. I've had to rebuild carbs, and replace pistons. Decided to try electric.. went battery powered with a Ryobi 18V Lithium (crap).. then tried corded.

Bought a cheap 5 amp B&D corded trimmer and haven't looked back. Unless you're chopping swordgrass, bamboo or small trees.. I suggest getting an inexpensive corded trimmer. Remove the shroud and watch out. You won't be disappointed.

In regards to your problem..

 

+1



May not be worth fixing if it's anything beyond litesout's suggestions.

 

I might go that way next, however, I hate having to plug something in.

Dick.

 

So many sexual puns....