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Alright I have this problem with my Craftsman 32cc Weedwacker trimmer, the problem is that once I start the engine, it starts but as soon as I pull the trigger it dies off within a couple seconds, I've asked people what the problem was and they said maybe its the carb, so I went to Sears and bought a brand new carb and installed it, still won't work, I also tried replacing the fuel lines, and the fuel filter, spark plug, still no luck. Please help

To be any help at all, we at least need your trimmer's model number.

When you put the new carb on did you use a new gasket?

(( cowboy up and get over it ))

The model number of my craftsman is 358.791070 and I bought a brand new carb, I'm guessing that would work

The later Weedeater units had a problem with the cylinder bolts working loose. Grab your muffler and wiggle side to side/up and down, if you have movement, you have a problem...

Or grab the sparkplug and wiggle.

Alright it doesn't move at all, and it still doesn't seem to stabilize after I pull the trigger

Well, that is a decent sign, I guess..

The problem with these trimmers is that most techs have not ventured any farther. Yes, a mechanic at a dealership could spend a day or so figuring out the problem, but he/his shop would never get paid for it, so it is doubtful that anyone will figure it out. Compounded with the problem of you posing
the problem online, it is real hard to say much.

Is there a chance that you messed up the fuel line routing??? It is real easy to do....

I would say its wired correctly, but is there a way I can check for sure that it's correct? But it should be right because the primer bulb pumps fuel into the carb, making it start the engine.

No, the "primer" bulb is not that. It is a purge bulb. It pulls the fuel through the carb and sends the excess back to the tank.

And if you do not know the plumbing, it will never run.

Is there a site where I can double check if my fuel lines are correct?

Even though others have not mentioned this because it is elementary. My new unit and at least 2 others within the month have needed hi and low speed fuel adjustments via the D headed screws inside the little aluminum casting. The units did not die, but starved. Try search in this forum

Bvo99 said:

Alright I have this problem with my Craftsman 32cc Weedwacker trimmer, the problem is that once I start the engine, it starts but as soon as I pull the trigger it dies off within a couple seconds, I've asked people what the problem was and they said maybe its the carb, so I went to Sears and bought a brand new carb and installed it, still won't work, I also tried replacing the fuel lines, and the fuel filter, spark plug, still no luck. Please help

Click to expand...

I don't know how many hours you have on the trimmer but check the spark arrestor in the muffler. It's the screen in the muffler. Over time it gets clogged with carbon if it's plugged up you would get that symptom to. take it out and use a propane torch burn it to an ash and blow it off with air. I've had 3 string trimmers I had to clean that way. Run like new afterwards. Just a thought.

Hows the air filter look, is it saturated with fuel?

Here is a pic of a new carb

http://www.searspartsdirect.com/partsdirect/part-number/545006017/0071/358

The fuel nipple on the top, near the choke lever, is the one that the line to the filter dangling in the bottom of the tank goes to.

The other nipple goes to the primer/purge bulb, then from the bulb, returns to the tank. The purge bulb needs to be hooked up in the
correct direction as well, return to the tank.

The air filter is clean, that's why I didn't care to buy a new one, and it also seems like my fuel lines are in the right place, I'm just confused why as soon as I pull the trigger it dies of within a couple seconds, the engine runs great when you haven't pulled of the trigger, but as soon as you do it dies.

You may just need to richen up your mixture screws a tad, just turn them 1/8 to the left for starts.

Bvo99 said:

Alright I have this problem with my Craftsman 32cc Weedwacker trimmer, the problem is that once I start the engine, it starts but as soon as I pull the trigger it dies off within a couple seconds, I've asked people what the problem was and they said maybe its the carb, so I went to Sears and bought a brand new carb and installed it, still won't work, I also tried replacing the fuel lines, and the fuel filter, spark plug, still no luck. Please help

Click to expand...

Hi
I have the same problem.No one came up with the answer yet.I've done about everything possible other than purchasing a new one.

The problem has been solved and saved another weedwacker from ending up in the land fill or China.:confused2::laughing::licking: