Author Topic: Poulan PP 5020AV Carb Carburetor Adjustment  (Read 4984 times)

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Offline Windy_Acres

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Poulan PP 5020AV Carb Carburetor Adjustment
« on: December 03, 2014, 12:31:20 pm »
Last year on Black Friday, I bought a pair of 5020s for cutting firewood, anyhow, Ive read they come crazy lean from the factory compliments of the EPA.

When I full throttle the saw, it revs clean, when Im in the wood, it revs clean as its cutting, does not do, what I believe you guys refer to as "4 stroking".

Let me qualify this, Im a 30+ year auto/heavy truck and equipment tech. I also own allot of toys, some built by honda and yamaha that are 2 strokes (yes, Im old school but got some new toys as well). At the same time, you can fill a thimble with what I know about saws, but I obviously repair everything myself, so I need to learn.

Anyway, from what I can gather, both these saws are running lean, or at least "hot" as far as 2 strokes go.

The one Im playing with right now, has about 10 tanks through it, of the canned premix 40:1 fuel, I just started it on my own 90 octane recreational fuel, running schaeffers pre-mix at 36:1

So before I melt this SOB down, Ive got 3 adjustments on the side of the saw, manual says the one marked "T" is for idle speed. The other two are "L" and "H". I get the low and high.

So do I adjust the saw in the wood ? I dont have a tach ? Not worried about the low setting, just the high. I bought the Husky spline tool for the screws, it fits, I turned the "H" 180 degrees to the left, or loosened it, it seemed to run faster... but that is only by my ear. Im not so much concerned with my cutting speed, as I am the longevity of the saw. And yes, I know its a consumer saw, and so am I, but for what I paid for them, if things do go south, I can throw them away. Im running orgeon full chisel chain (LPX ?), broke in, for the $, its allot of saw (with a sharp chain).

I get the impression this saw is a re-branded rancher, was hoping someone here knew something about this. Started heating with wood this season, but Im bucking and splitting wood for next year right now.

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Offline Cut4fun .

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Re: Poulan PP 5020AV Carb Carburetor Adjustment
« Reply #1 on: December 03, 2014, 12:39:46 pm »
Old post by me on one I bought new.  Out of wood tune.

By ear you can set to 4 stroking and then back off hair to start to clean or leave 4 sroking and hear it clean up once it starts the cut.

Here is what I saw from factory settings and what I ended up with.

Thinking max was  around13K.  I liked mine around 12.8K.

When I got mine new.
I checked factory settings and then put them back to see. L was 1.5 out from lightly seated and H was 2 - 2.5 out (sorry cant remember H off hand).

It would start and not idle and shut off. Start and bog giving throttle.

I kept adjusting the carb till I ended up with about 3 out on L from lightly seated and left 2-2.5 on H out from lightly seated at about 12.8K. Turned the I idle up too.  Not like the 1 to 1.5 turns out we get used to.

Thread on poulan 5020. http://chainsawrepair.createaforum.com/poulan/poulan-pro-5020/

Madsen's explains carb tuning  http://www.madsens1.com/saw_carb_tune.htm
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Offline Windy_Acres

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Re: Poulan PP 5020AV Carb Carburetor Adjustment
« Reply #2 on: December 03, 2014, 01:01:40 pm »
Awesome, thank you.

I did read the Madsen's article (Ive read a bunch in the how to section) and have watched some videos, but was hoping for some specific info, that you just provided, Thank You !

Offline Windy_Acres

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Re: Poulan PP 5020AV Carb Carburetor Adjustment
« Reply #3 on: December 03, 2014, 04:08:24 pm »
Thanks for that, got it somewhat dialed in, and 4 stroking now.

Read that entire thread, funny, I picked up a 16" bar and chains for my #2 5020. Although Ive not installed them as of yet, but I do believe I got the K095 Bar and LPX chains. I too think the 20" bar is too much 75% of the time for that saw and what Im using it for.

 

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