2015 PW50 Won't Stay Running

Safford191
These things are pretty simple so I must be a simpleton. Has super low hours, and sat for a couple of years before somebody else cleaned out the carb. I don't see a pilot jet ??? next to the main jet but there is a non threaded hole there. It will start and run for a minute or so and then bogs out and quits running. If you let it sit a few seconds, it will start but quit shortly thereafter. The longer it sits the longer it will run on first restart. It has spark even after first stalling and I can drain a full bowl of fuel immediately after it bogs out. I am positive it is not running out of fuel as the bowl drains quite a bit. Anybody been through this and have any ideas?
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Factor E
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Factor E 12/13/2020 2:38am
12/13/2020 2:38am
Looks non threaded, but there is a pilot at the bottom
very small
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DynoDan22
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DynoDan22 12/13/2020 6:57am
12/13/2020 6:57am
The pilot jet is clogged from sitting. The pilot jet is located in the non threaded hole and requires a small flat head screw driver. Make sure to get the correct size flat head driver or you'll round off the pilot head. Shine a flashlight down the non threaded hole and you'll see the flats of the pilot. I bet it's clogged. I recommend gutting the entire carb and giving it a thorough cleaning as the needle and emulsion tube can also have gunk on it causing a lean condition. Spray carb cleaner through all jet passages to confirm good flow. make sure to hook the oil line back up as well. Haha. I've done more than my share of PW's that have sat for years and they can be finicky. I've also found the air screws come set from the factory a little lean. I always end up at around 1-1.5 out from fully seated. Good luck and keep us posted!
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Safford191 12/13/2020 8:03am
12/13/2020 8:03am
Update.... thanks you guys, I appreciate the input. OK upon deeper re-inspection of the pilot jet hole, the pilot jet has been rounded off so smooth and well that it just looks like a tiny hole now in the bottom. I suppose getting it out will be a nightmare. Any suggestions on that? Also ... the oil line doesn't appear to pull off as easily as the fuel line? Do I tug harder? I'm afraid I will break or stretch the line.
Safford191 12/13/2020 8:10am
12/13/2020 8:10am
Sorry... One more thing. After Drilling and removing the air screw plug, I noticed the air screw is a blunt tip type, unlike the needle tip that I'm used to. It almost resembles a float Bowl drain more than an air screw. It does not have a rubber o-ring seal. Is that normal? Is it okay not to reinstall a new brass plug when I finally fix this thing?

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DynoDan22
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DynoDan22 12/13/2020 9:28am
12/13/2020 9:28am Edited Date/Time 12/13/2020 9:29am
You could use a tiny strand of wire to clean the pilot jet in place. I use a small piece of guitar string and poke/spray into the pilot jet to clean it. I've run across a few PW carbs where someone rounded off the pilot jet head. In regards to the air screw, I ha e worked on any PW's newer than '03. It sounds like they have a tamper proof air screw. The oil line is a pain to get off. I believe it has a metal collar that you need to slide off prior to removing. I had to tug a bit to remove the line.

*edit. There is no o-ring and washer on the air screw.
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Safford191 12/13/2020 12:29pm
12/13/2020 12:29pm
mattyhamz2 wrote:
https://pwonly.com/product/pw50-carburetor/ There you go dude. Cheap enough to grab a new one. You could try drilling out the old pilot, but i don’t know how easy...
https://pwonly.com/product/pw50-carburetor/

There you go dude. Cheap enough to grab a new one. You could try drilling out the old pilot, but i don’t know how easy it will be on that tiny carb.
It's become personal between this dang carburetor and myself lol, and by golly I will win!!
However, just in case I don't ....thank-youCool
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Factor E
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Factor E 12/13/2020 12:36pm
12/13/2020 12:36pm
Soak it with penetrant
Use a left turning drill bit
turn by hand first as to not make it worse
mattyhamz2 12/13/2020 3:01pm
12/13/2020 3:01pm
mattyhamz2 wrote:
https://pwonly.com/product/pw50-carburetor/ There you go dude. Cheap enough to grab a new one. You could try drilling out the old pilot, but i don’t know how easy...
https://pwonly.com/product/pw50-carburetor/

There you go dude. Cheap enough to grab a new one. You could try drilling out the old pilot, but i don’t know how easy it will be on that tiny carb.
Safford191 wrote:
It's become personal between this dang carburetor and myself lol, and by golly I will win!!
However, just in case I don't ....thank-youCool
Hahaha!! Been there dude! You got this!

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