I have a 32cc craftsman weed eater it will start and run at about half throttle, if you pull the throttle lever it like floods out. If you play with it you can get it to run full throttle but once you let up it dies. any advice would be great

Mc Gyvers Workshop may have a video

http://www.barrettsmallengine.com/partslist/poulanproppb330trimmer.pdf

hope this is helpful and the right model

Terry: According to eHow.com:

"

Put on a pair of safety glasses. Remove the fuel cap from the Weed Eater and set it aside. Fill the fuel tank with unleaded gasoline that has been mixed with quality 2-stroke oil in a 40:1 ratio. Replace the fuel cap.

Move the Weed Eater to a safe place and lay it flat on the ground. Depress the fuel bulb located beneath the carburetor approximately six times to prime the engine. Press it slowly so that fuel has adequate time to traverse the fuel line.

Slide the handlebar-mounted engine "On/Stop" switch to the "On" position. Slide the choke lever beneath the fuel tank to the "Full" position.

Depress the "Throttle Lock" lever located beside the engine "On/Stop" switch. Keeping the lever depressed, squeeze the throttle trigger. Release the throttle lock. This sequence holds the trigger in the depressed position, which aids in starting the Weed Eater.

Roll the Weed Eater so that it is resting on the engine and the trimmer head shield only. This will allow the spinning trimmer head to avoid contact with the ground. Brace the Weed Eater by holding it to the ground with one hand. Using your other hand, pull the starter rope quickly until the engine begins to run. Do not pull the rope more than a dozen times. If it fails to start by then, squeeze the throttle trigger and continue to pull until the engine starts.

Allow the Weed Eater to warm up for about 15 seconds, then slide the choke lever to the "Off" position. Let the trimmer run for another minute without touching the throttle lever. After the Weed Eater has warmed up, squeeze the throttle trigger once to disengage the throttle lock. The trimmer is now operational.

Read more : http://www.ehow.com/how_6720315_start-gas-weed-eater.html"

Go to http://www.searspartsdirect.com/

Select model number and her your model to look-up the part number and you can then order the part from them or some other dealer using that part number.

Check the ground wire from the switch. The kill switch uses ground to kill the engine.

The one way clutch could be broken or jammed. Take off the starter for a closer look.

Clean or replace carburetor.

are you switching it from choke, to run ?

Usually the diaphram is wore out. It is a relatively inexpensive part. Does it run better with a little choke? If the answer is yes chances are it's the diaphram. Also sometimes the adjustment screws can move. There are two, one for low speed, and one for high. With the engine warmed up make small movements on the screws (some are marked low, and high) in, and out adjust til the engine runs at its optimum.
Hope this helps!

http://www.searspartsdirect.com/partsdirect/getSubComp.pd?modelNumber=358795190&productCategoryId=1503820&brandId=0247&modelName=TRIMMER&diagramPageId=00002&componentDescription=CYLINDER/FAN%20HOUSING/CRANKCASE&documentId=P0303202&backToLink=Return%20to%20Sub%20Components%20list