026 drives me crazy

[ferris]

Hey guys,
this saw drives me crazy.

https://youtube.com/shorts/3wMxb8_nQFY?feature=share

I have changed both shaft seals.
A new carb kit.
Boot, fuel line and filter looks fine.
Base gasket looks fine to, I added a little sealant because I don’t have a new gasket on hand.
What can it be, for me it sound like a air leak, but I ve no idea where

 

[Stump Shot]

Sounds like a fuel starvation issue. Check fuel line and fuel filter as well as tank vent and carb settings first off.
You may have to go through carburetor again to make sure there isn't a fault issue that you missed.
A pressure/vac pump will go a long way into helping you sort out not only your carburetor but the entire saw and help find your specific issue instead of just some random likely possibility's.
Best of luck to you finding the problem.

 

[Bjorn]

You are not alone

 

[seagiant]

Hi,
I have an 026 PRO that did that and it was a rotten impulse line, which has to be OEM.

 

[Stump Shot]

Hi,
I have an 026 PRO that did that and it was a rotten impulse line, which has to be OEM.

Very distinct possibility, not only a vacuum leak, would hamper fuel pump operation as well.

 

[Wood Doctor]

Check the seal between the carb and the impulse boot. Does the impulse boot, part 25, have a full lip and is part 28 there?



I have run into an 026 in whch both were missing and only a gasket from another saw was used to seal it all. That idea failed miserably.

 

[lehman live edge slab]

If you haven’t changed the fuel line I would alone along with the filter. They like to get soft and suck shut leaning the mixture out.

 

[ferris]

W

Check the seal between the carb and the impulse boot. Does the impulse boot, part 25, have a full lip and is part 28 there?

View attachment 336644

I have run into an 026 in whch both were missing and only a gasket from another saw was used to seal it all. That idea failed miserably.

What do u mean with full lip?
The parts 25 and 28 are there

 

[drf256]

Run it with the air filter off please. Start it with a squirt of mix down the carb.

Will cost u nothing.

 

[Wood Doctor]

W
What do u mean with full lip?
The parts 25 and 28 are there.

Occasionally a boot with a flat end gets mounted there so that part 28 protrudes in front of it and the carb joins with metal on metal to set up an air leak. Your boot could also have a small cut or crack in it somewhere that lets in air. Here is how bad that can get:

 

[IEL Fan]

Now that is ingestion to the extreme.

My vote is bad impulse line

 

[Wonkydonkey]

Sounds like a fuel starvation issue. Check fuel line and fuel filter as well as tank vent and carb settings first off.
You may have to go through carburetor again to make sure there isn't a fault issue that you missed.
A pressure/vac pump will go a long way into helping you sort out not only your carburetor but the entire saw and help find your specific issue instead of just some random likely possibility's.
Best of luck to you finding the problem.

sage words right here

You are not alone

sad music right there,, dam annoying from what I remembered of the elvis Wanabe…

Occasionally a boot with a flat end gets mounted there so that part 28 protrudes in front of it and the carb joins with metal on metal to set up an air leak. Your boot could also have a small cut or crack in it somewhere that lets in air. Here is how bad that can get:
View attachment 336714

been there ..

as well as putting in the pto seal too far and it getting chewed up dam quick..