New poulan pro 25cc chokes out after if I give it full throttle. Runs ok except it wont stay running on full throtle.

Sounds like the fuel filter is particularly plugged. Maybe you had a little trash in your gas, or a bit of it was in the tank from manufacturing. Hopefully changing or blowing out the filter will help. That's the first thing I'd check.

sounds like you have a crank seal out of it, you ncan try to clean carb and check fuel lines etc, but usually when they rev high with out giving throttle means there is an air leak Good Luck 2StrokeJim

just bought a new Poulan 25cc 2cycle gas power weed eater . I can start it with the choke on but as soon as put on run it dies.

After you start it and are in the second stage of the choke (half choke ) let it run for awhile until it warms a bit then try openning choke and going to full throttle.

Carb needs teardown and cleaning. May be a stuck float or clogged jet.
Spraycleaner just wont cut it.

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the choke might be back wards

First of all, YES. boggs is a word in my dictionary. Remove the muffler and carefully take it apart. Pay close attention as to how it comes apart because it is vary important it goes back the same way. you will probable find that it is clogged. If it is then remove the debree. If it isn't then you will have to adjust the fuel mixture screw. First start the trimmer, then let it run for a few minutes to warm up, then gently turn the screw a little bit at a time counter clockwise first, squeezing the throttle inbetween adjustments . If it starts to take off then fine tune it untile your happy. If it boggs worse then turn it clockwise.

But first check the muffler.

Good luck

Are you saying full throttle, or full choke? if full throttle, you should be able to set the idle up. the idle screw will be the one when you give it gas, it will be the screw on you'r throttle linkage. If full choke, maybe the spark arrestor is plugged. You can remove it by removing the muffler.It would be between the muffler and cylinder head. You don't need this to run.I hope any thing I posted will help.

high speed jet is pluged

Start with the spark plug it is the easiest.

But sounds like the carbourator is dirty, Probably fouled with old gas varnish. When it is idling give it a little throttle, flip the choke on and then full throttle. If it goes full throttle and doesn't conk out, it is a fuel issue.

Good Luck